diff --git a/HOWTO-ar.md b/HOWTO-ar.md
index cf7aa16a8..8812d5bc3 100644
--- a/HOWTO-ar.md
+++ b/HOWTO-ar.md
@@ -1,4 +1,4 @@
-إقرأ هذا بلغات أخرى: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+إقرأ هذا بلغات أخرى: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
 
 مرحبا بكم في *!Free-Programming-Books* نرحّب بجميع المساهمين الجدد؛ ونرحب أيضا بهؤلاء الذين يريدون تقديم أول بولّ ريكويست لهم علي جيت هبّ. إن كنت واحدا منهم، فإليك بعض المصادر التي ربما تساعدك:
 
diff --git a/HOWTO-bn.md b/HOWTO-bn.md
new file mode 100644
index 000000000..1568b3c7f
--- /dev/null
+++ b/HOWTO-bn.md
@@ -0,0 +1,16 @@
+অন্য ভাষায় এটা পড়ুন : [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), **বাংলা**.
+
+Free-Programming-Books রিপোজটরি তে স্বাগতম! আমরা নবাগত কন্ট্রিবিউটরস দের স্বাগতম জানাই; এমনকি যারা গিটহাবে এই প্রথম কোন "পুল রিকোয়েস্ট" তৈরি কয়েছেন। যদি আপনি তাদের একজন হয়ে থাকেন তাহলে নিচের রিসোর্স গুলো আপনার কাজে লাগতে পারেঃ
+
+* [:us: পুল রিকোয়েস্ট কি?](https://help.github.com/articles/about-pull-requests/) *(in english)*
+* [:us: কিভাবে পুল রিকোয়েস্ট দিব](https://docs.github.com/en/free-pro-team@latest/github/collaborating-with-issues-and-pull-requests/creating-a-pull-request) *(in english)*
+* [:us: গিটহাব হ্যালো ওয়ার্ল্ড](https://guides.github.com/activities/hello-world/) *(in english)*
+* [:us: ইউটিউব - নতুনদের জন্য গিটহাব](https://www.youtube.com/watch?v=0fKg7e37bQE) *(in english)*
+* [:us: ইউটিউব - কিভাবে একটি গিটহাব রিপোজিটরি ফোর্ক করবেন এবং পুল রিকোয়েস্ট সাবমিট করবেন](https://www.youtube.com/watch?v=G1I3HF4YWEw) *(in english)*
+* [:us: ইউটিউব - মার্কডাউন ক্র্যাশ কোর্স ](https://www.youtube.com/watch?v=HUBNt18RFbo) *(in english)*
+
+কোন প্রশ্ন করতে দ্বিধাবোধ করবেন না। সব কন্ট্রিবিউটরই ফার্স্ট পুল রিকোয়েস্ট থেকে শুরু করেছিল। আপনিও হতে পারেন আমাদের সহস্রতম কন্ট্রিবিউটর! 
+
+এমনকি আপনি যদি একজন অভিজ্ঞ ওপেন-সোর্স কন্ট্রিবিউটর ও হয়ে থাকেন, কখনও কখনো কিছু জিনিস ভুল হতেই পারে। যখন আপনি আপনার পুল রিকোয়েস্ট সাবমিট করবেন গিটহাব একশনস আপনার কোড কে যাচাই-বাছাই করবে, কখনো বা স্পেসিং বা ক্যাপিটালাইজেশন এর মত ছোটখাটো জিনিস খুঁজে বের করবে। যদি আপনি সবুজ বাটন পেয়ে যান, তাহলে বুঝতে পারবেন সবকিছু রিভিউ এর জন্য প্রস্তুত। কিন্তু যদি আপনি সবুজ বাটন না পান তাহলে ফেইল্ড হওয়া চেক এর নিচে "Details" এ ক্লিক করলে সমস্যাগুলি খুঁজে বের করতে পারবেন। তারপর সেই সমস্যাগুলো ফিক্স করার পর আপনার পুল রিকোয়েস্ট এ কমিট করবেন। 
+
+যদি আপনার সন্দেহ হয় যে আপনার রিসোর্স "Free-Programming-Books" এর জন্য উপযুক্ত কিনা, এই গাইডলাইন্স পড়ে দেখুন- [CONTRIBUTING](CONTRIBUTING.md)
diff --git a/HOWTO-bs.md b/HOWTO-bs.md
index 751149032..b46df25b0 100644
--- a/HOWTO-bs.md
+++ b/HOWTO-bs.md
@@ -1,4 +1,4 @@
-Pročitaj ovo u drugim jezicima: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+Pročitaj ovo u drugim jezicima: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md).
 
 Dobrodošli u Free-Programming-Books! Primamo nove kontributore; čak i one koji tek prave svoj prvi pull request na GitHub-u. Ako ste jedan od njih, ovdje je nekoliko izvora koji bi Vam mogli pomoći:
 
diff --git a/HOWTO-de.md b/HOWTO-de.md
index 7625b4f1f..0ff334465 100644
--- a/HOWTO-de.md
+++ b/HOWTO-de.md
@@ -1,4 +1,4 @@
-Lese das hier auch in anderen Sprachen: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+Lese das hier auch in anderen Sprachen: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md).
 
 Willkommen zu *Free-Programming-Books*! Wir heißen neue Beitragende herzlich willkommen. Auch die, die ihren ersten Pull Request (PR) auf GitHub machen möchten. Wenn Du eine dieser Personen bist, dann findest Du hier einige nützliche Ressourcen:
 
diff --git a/HOWTO-es.md b/HOWTO-es.md
index a7cb7f821..8cab78cb6 100644
--- a/HOWTO-es.md
+++ b/HOWTO-es.md
@@ -1,4 +1,4 @@
-Lea esto en otros idiomas: [English](HOWTO.md), [Français](HOWTO-fr.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+Lea esto en otros idiomas: [English](HOWTO.md), [Français](HOWTO-fr.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md).
 
 ¡Sea bienvenido a *Free-Programming-Books*! Damos una calurosa bienvenida a los nuevos colaboradores; incluso a aquellos que realizan su primera Pull Request (PR) en GitHub. Si es usted uno de ellos, aquí van algunos recursos que quizás le pueden ayudar:
 
diff --git a/HOWTO-fa_IR.md b/HOWTO-fa_IR.md
index bb11641a3..8fd58ecdb 100644
--- a/HOWTO-fa_IR.md
+++ b/HOWTO-fa_IR.md
@@ -1,4 +1,4 @@
-این متن را در زبان‌های دیگر بخوانید: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+این متن را در زبان‌های دیگر بخوانید: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md).
 
 
 <div dir="rtl">
diff --git a/HOWTO-fr.md b/HOWTO-fr.md
index 5c5c23cb6..b4154813c 100644
--- a/HOWTO-fr.md
+++ b/HOWTO-fr.md
@@ -1,4 +1,4 @@
-Lisez ceci dans d'autres langues: [English](HOWTO.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+Lisez ceci dans d'autres langues: [English](HOWTO.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md).
 
 Bienvenue à Free-Programming-Books! Nous souhaitons la bienvenue aux nouveaux contributeurs; même ceux qui font leur toute première pull request sur Github. Si vous faites partie de ceux-ci, voici quelques ressources qui pourraient vous aider:
 
diff --git a/HOWTO-hi.md b/HOWTO-hi.md
index 010c29a72..53cf18172 100644
--- a/HOWTO-hi.md
+++ b/HOWTO-hi.md
@@ -1,4 +1,4 @@
-इस लेख को अन्य भाषाओं में पढ़ें: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+इस लेख को अन्य भाषाओं में पढ़ें: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md).
 
 फ्री-प्रोग्रामिंग-पुस्तकों में आपका स्वागत है! हम नए योगदानकर्ताओं का स्वागत करते हैं; यहां तक ​​कि उन लोगों के लिए जो Github पर अपना पहला पुल अनुरोध करते हैं। यदि आप उनमें से एक हैं, तो यहां कुछ संसाधन हैं जो मदद कर सकते हैं:
 * [About Pull Requests](https://help.github.com/articles/about-pull-requests/)
diff --git a/HOWTO-id.md b/HOWTO-id.md
index a4230b213..3364460f0 100644
--- a/HOWTO-id.md
+++ b/HOWTO-id.md
@@ -1,4 +1,4 @@
-Baca ini dalam bahasa lain: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+Baca ini dalam bahasa lain: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
 
 Selamat datang di Free-Programming-Books! Kami menyambut kontributor baru; bahkan untuk mereka yang membuat pull request pertama kali di Github. Jika Anda adalah salah satunya, berikut adalah beberapa sumber yang mungkin bisa membantu:
 
diff --git a/HOWTO-it.md b/HOWTO-it.md
index f5aad1ae1..e8a93243d 100644
--- a/HOWTO-it.md
+++ b/HOWTO-it.md
@@ -1,4 +1,4 @@
-Leggilo in altre lingue: [Deutsch](HOWTO-de.md), [English](HOWTO.md), [Español](HOWTO-es.md), [Français](HOWTO-fr.md), **Italiano**, [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+Leggilo in altre lingue: [Deutsch](HOWTO-de.md), [English](HOWTO.md), [Español](HOWTO-es.md), [Français](HOWTO-fr.md), **Italiano**, [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
 
 Benvenuto su Free-Programming-Books! Diamo il benvenuto ai nuovi collaboratori; anche a quelli che fanno la loro prima pull request su Github. Se sei uno di quelli, ecco qualche risorsa che potrebbe aiutarti:
 
diff --git a/HOWTO-km.md b/HOWTO-km.md
index b425eab73..a4077d005 100644
--- a/HOWTO-km.md
+++ b/HOWTO-km.md
@@ -1,4 +1,4 @@
-អានជាភាសាផ្សេងៗ: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+អានជាភាសាផ្សេងៗ: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
 
 ស្វាគមន៍មកកាន់ Free-Programming-Books! យើងរីករាយ ទទូល contributors ថ្មីៗ; ទោះបីវាជាការpull request ជាលើកដំបូងរបស់អ្នកក៏ដោយ. បើអ្នកទើបតែចាប់ផ្តើម contibute ដំបូង , ធនធានខាងក្រោមអាចជួយអ្នកបាន:
 
diff --git a/HOWTO-ko.md b/HOWTO-ko.md
index f6c52a32e..3bea21b94 100644
--- a/HOWTO-ko.md
+++ b/HOWTO-ko.md
@@ -1,4 +1,4 @@
-다른언어: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+다른언어: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md).
 
 Free-Programming-Books 에 오신 것을 환영합니다! 우리는 Github 에 첫 Pull-request 를 분들을 포함한 새로운 기여자들을 환영합니다. 다음 리소스들은 당신에게 도움이 될 수 있습니다:
 
diff --git a/HOWTO-pl.md b/HOWTO-pl.md
index 429b0b3be..517beaaa5 100644
--- a/HOWTO-pl.md
+++ b/HOWTO-pl.md
@@ -1,4 +1,4 @@
-Przeczytaj to w innych językach: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+Przeczytaj to w innych językach: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
 
 Witamy w *Free-Programming-Books*! Witamy nowych współtwórców; nawet tych, którzy robią swoje pierwsze żądanie ściągnięcia na Github. Jeśli jesteś jednym z nich, oto kilka zasobów, które mogą Ci pomóc:
 
diff --git a/HOWTO-pt_BR.md b/HOWTO-pt_BR.md
index 40442d679..efa529ba4 100644
--- a/HOWTO-pt_BR.md
+++ b/HOWTO-pt_BR.md
@@ -1,4 +1,4 @@
-Leia em outras linguagens: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+Leia em outras linguagens: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md).
 
 Seja bem-vindo(a) ao Free-Programming-Books (Livros de Programação Grátis)! Novos contribuidores são bem-vindos para nós; até mesmo aqueles fazendo seu primeiro pull request no Github. Se você é um deles, nós temos alguns recursos que podem ajudar:
 
diff --git a/HOWTO-ru.md b/HOWTO-ru.md
index b474ad2c8..d30e7cc3a 100644
--- a/HOWTO-ru.md
+++ b/HOWTO-ru.md
@@ -1,4 +1,4 @@
-Доступно на других языках: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+Доступно на других языках: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md).
 
 Добро пожаловать в Free-Programming-Books! Мы приветствуем новых участников; даже тех, кто делает свой самый первый пулреквест на Github. Если вы один из них, вот несколько ресурсов, которые могут вам помочь:
 
diff --git a/HOWTO-sl.md b/HOWTO-sl.md
index 37ba17f9c..1548e997a 100644
--- a/HOWTO-sl.md
+++ b/HOWTO-sl.md
@@ -1,4 +1,4 @@
-Preberite to v drugih jezikih: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+Preberite to v drugih jezikih: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
 
 Dobrodošli v zbirki Free-Programming-Books! Lepo pozdravljeni vsi novi programerji - tudi tisti, ki boste na Githubu ustvarili vaš prvi zahtevek potega (pull-request). Če ste eden izmed njih, vam pri tem lahko pomaga nekaj virov:
 
diff --git a/HOWTO-sv.md b/HOWTO-sv.md
index 3a547bde5..858cb14e2 100644
--- a/HOWTO-sv.md
+++ b/HOWTO-sv.md
@@ -1,4 +1,4 @@
-Läs detta på andra språk: [English](HOWTO.md), [Français](HOWTO-fr.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Svenska](HOWTO-se.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+Läs detta på andra språk: [English](HOWTO.md), [Français](HOWTO-fr.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Svenska](HOWTO-se.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
 
 Välkommen till *Free-Programming-Books*! Vi välkomnar varmt nya medarbetare, även de som gör sin första Pull Request (PR) på GitHub. Om du är en av dem finns här några resurser som kan hjälpa dig:
 
diff --git a/HOWTO-vi.md b/HOWTO-vi.md
index e302f21d7..2ea938598 100644
--- a/HOWTO-vi.md
+++ b/HOWTO-vi.md
@@ -1,4 +1,4 @@
-Đọc tài liệu này bằng các ngôn ngữ khác: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+Đọc tài liệu này bằng các ngôn ngữ khác: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
 
 Chào mừng tới Free-Programming-Books! Chúng tôi chào đón những người đóng góp mới, kể cả khi những người đóng góp lần đầu thực hiện trên Github. Nếu bạn là một trong số họ, đây là một số nguồn có thể giúp:
 
diff --git a/HOWTO-zh.md b/HOWTO-zh.md
index 0baea904b..cb60fa159 100644
--- a/HOWTO-zh.md
+++ b/HOWTO-zh.md
@@ -1,4 +1,4 @@
-阅读本文的其他语言版本：[English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+阅读本文的其他语言版本：[English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md).
 
 欢迎使用 Free-Programming-Books（免费编程书籍）！我们欢迎新的贡献者；即使是在 Github 上首次提出拉取请求的人。如果您是其中之一，那么以下资源可能会有所帮助：
 
diff --git a/HOWTO-zh_TW.md b/HOWTO-zh_TW.md
index d0991a9e9..ccd4658c0 100644
--- a/HOWTO-zh_TW.md
+++ b/HOWTO-zh_TW.md
@@ -1,4 +1,4 @@
-閱讀本文的其他語言版本: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md).
+閱讀本文的其他語言版本: [English](HOWTO.md), [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [босански](HOWTO-bs.md), [Deutsch](HOWTO-de.md), [한국어](HOWTO-ko.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md).
 
 歡迎使用 Free-Programming-Books！我們歡迎新的貢獻者；即使是在 Github 上首次提出 pull request 的人。如果您是其中之一，那麼以下資源可能會對你有所幫助：
 
diff --git a/HOWTO.md b/HOWTO.md
index c8de0a924..c689f40f1 100644
--- a/HOWTO.md
+++ b/HOWTO.md
@@ -1,4 +1,4 @@
-Read this in other languages: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [Filipino](HOWTO-fil.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
+Read this in other languages: [Français](HOWTO-fr.md), [Español](HOWTO-es.md), [Filipino](HOWTO-fil.md), [简体中文](HOWTO-zh.md), [हिन्दी](HOWTO-hi.md), [繁體中文](HOWTO-zh_TW.md), [Português (BR)](HOWTO-pt_BR.md), [فارسی](HOWTO-fa_IR.md), [Русский](HOWTO-ru.md), [Deutsch](HOWTO-de.md), [Bahasa Indonesia](HOWTO-id.md), [Tiếng Việt](HOWTO-vi.md), [عربي](HOWTO-ar.md), [বাংলা](HOWTO-bn.md), [Українська](HOWTO-uk.md), [한국어](HOWTO-ko.md).
 
 Welcome to Free-Programming-Books! We welcome new contributors; even those making their very first pull request on Github. If you're one of those, here are some resources that might help:
 
diff --git a/README.md b/README.md
index 98d3e4a08..6250c61eb 100644
--- a/README.md
+++ b/README.md
@@ -127,6 +127,7 @@ Free Podcasts and Screencasts:
 + [English](casts/free-podcasts-screencasts-en.md)
 + [Finnish / Suomi](casts/free-podcasts-screencasts-fi.md)
 + [French / français](casts/free-podcasts-screencasts-fr.md)
++ [Hebrew / עברית](casts/free-podcasts-screencasts-he.md)
 + [Indonesian / Bahasa Indonesia](casts/free-podcasts-screencasts-id.md)
 + [Persian / Farsi (Iran) / فارسى](casts/free-podcasts-screencasts-fa_IR.md)
 + [Polish / polski / język polski / polszczyzna](casts/free-podcasts-screencasts-pl.md)
diff --git a/books/free-programming-books-ar.md b/books/free-programming-books-ar.md
index 0ffa6a892..1c3ad015c 100644
--- a/books/free-programming-books-ar.md
+++ b/books/free-programming-books-ar.md
@@ -24,8 +24,9 @@
 
 ### Arduino
 
+* [AVR ببساطة: من تشغيل دايود ضوئي إلى أنظمة الوقت الحقيقي](https://github.com/abdallah-ali-abdallah/Simply-AVR-Book) - عبدالله علي عبدالله, Abdallah Ali Abdallah Elmasry (ODT, PDF)
 * [احترف الأردوينو](https://www.ev-center.com/uploads/2/1/2/6/21261678/arduino.pdf) - Working Group (PDF)
-* [أردوينو ببساطة](https://simplyarduino.com/%D9%83%D8%AA%D8%A7%D8%A8-%D8%A7%D8%B1%D8%AF%D9%88%D9%8A%D9%86%D9%88-%D8%A8%D8%A8%D8%B3%D8%A7%D8%B7%D8%A9/) - Abdallah Ali Abdallah (PDF)
+* [اردوينو ببساطة](https://simplyarduino.com/%D9%83%D8%AA%D8%A7%D8%A8-%D8%A7%D8%B1%D8%AF%D9%88%D9%8A%D9%86%D9%88-%D8%A8%D8%A8%D8%B3%D8%A7%D8%B7%D8%A9/) - عبدالله علي عبدالله, Abdallah Ali Abdallah Elmasry (PDF)
 
 
 ### Artificial Intelligence
diff --git a/books/free-programming-books-fr.md b/books/free-programming-books-fr.md
index f87885bda..7f1573538 100644
--- a/books/free-programming-books-fr.md
+++ b/books/free-programming-books-fr.md
@@ -106,7 +106,7 @@
 
 ### Caml
 
-* [Le language Caml](http://caml.inria.fr)
+* [Le langage Caml](https://caml.inria.fr/pub/distrib/books/llc.pdf) - Pierre Weis, Xavier Leroy (PDF)
 
 
 ### C / C++
diff --git a/books/free-programming-books-langs.md b/books/free-programming-books-langs.md
index 0a683cf85..1670555ee 100644
--- a/books/free-programming-books-langs.md
+++ b/books/free-programming-books-langs.md
@@ -563,7 +563,7 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 * [COBOL Programming Fundamental](http://yusman.staff.gunadarma.ac.id/Downloads/files/33460/COBOL_Programming_Fundamental.pdf) (PDF)
 * [Enterprise COBOL for z/OS documentation library](http://www-01.ibm.com/support/docview.wss?uid=swg27036733)
 * [ILE COBOL Programmer's Guide](https://www.ibm.com/docs/de/ssw_ibm_i_74/pdf/sc092539.pdf) (PDF)
-* [Introduction to the COBOL Language](https://supportline.microfocus.com/documentation/books/oc41books/lrintr.htm)
+* [Micro Focus: OO Programming with Object COBOL for UNIX (1999)](https://www.microfocus.com/documentation/object-cobol/oc41books/oppubb.htm) - MERANT International Ltd. (HTML)
 * [OpenCOBOL 1.1 - Programmer's Guide](http://open-cobol.sourceforge.net/guides/OpenCOBOL%20Programmers%20Guide.pdf) (PDF)
 
 
@@ -2263,6 +2263,7 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 * [Enterprise Pharo: a Web Perspective](http://books.pharo.org/enterprise-pharo/)
 * [Numerical Methods with Pharo](http://books.pharo.org/numerical-methods/) - Didier Besset, Stéphane Ducasse, Serge Stinckwich
 * [Pharo by Example](http://books.pharo.org/pharo-by-example/) - Andrew P. Black et al. (Smalltalk Implementation and IDE)
+* [Squeak by Example](https://github.com/hpi-swa-lab/SqueakByExample-english)
 * [Stef's Free Online Smalltalk Books](http://stephane.ducasse.free.fr/FreeBooks.html) (meta-list)
 
 
diff --git a/casts/free-podcasts-screencasts-he.md b/casts/free-podcasts-screencasts-he.md
new file mode 100644
index 000000000..15eff74a6
--- /dev/null
+++ b/casts/free-podcasts-screencasts-he.md
@@ -0,0 +1,7 @@
+### כללי
+
+* [מפתחים חסרי תרבות](http://notarbut.co) (פודקאסט)
+* [עושים תוכנה](https://www.osimhistoria.com/software) (פודקאסט)
+* [פרונטאנד לנד](https://podcastim.org.il/פרונטאנד-לנד) (פודקאסט)
+* [צרות בהייטק](https://hitechproblems.podbean.com) (פודקאסט)
+* [רברס עם פלטפורמה](https://www.reversim.com) (פודקאסט)
diff --git a/more/free-programming-interactive-tutorials-en.md b/more/free-programming-interactive-tutorials-en.md
index a0ce3a45e..ca783eac1 100644
--- a/more/free-programming-interactive-tutorials-en.md
+++ b/more/free-programming-interactive-tutorials-en.md
@@ -23,6 +23,7 @@
   * [AngularJS](#angularjs)
   * [jQuery](#jquery)
   * [React](#react)
+  * [Redux](#redux)
 * [Kotlin](#kotlin)
 * [Language Agnostic](#language-agnostic)
   * [Operating Systems](#operating-systems)
@@ -162,7 +163,6 @@
 * [Flex Box Adventure](https://codingfantasy.com/games/flexboxadventure) - Nick Bull
 * [Flexbox Defense](http://flexboxdefense.com)
 * [Flexbox Froggy](http://flexboxfroggy.com)
-* [FreeCodeCamp: Responsive Web Design Course](https://www.freecodecamp.org/learn/responsive-web-design/basic-html-and-html5/)
 * [Grid Attack](https://codingfantasy.com/games/css-grid-attack) - Nick Bull
 * [Grid Garden](https://cssgridgarden.com)
 * [HTML Tutorial](https://www.w3schools.com/html/) - W3Schools
@@ -171,13 +171,14 @@
 * [Learn CSS: an evergreen CSS course and reference to level up your styling expertise](https://web.dev/learn/css/) - Andy Bell, Rachel Andrew, Una Kravets, Adam Argyle, Rob Dodson, Jiwoong Lee et al. (web.dev)
 * [Learn HTML & CSS interactively](https://www.codecademy.com/learn/web)
 * [Prototyping a professional website](https://www.codecademy.com/learn/make-a-website)
+* [Responsive Web Design Certification](https://www.freecodecamp.org/learn/responsive-web-design/) - freeCodeCamp
 
 
 #### Bootstrap
 
 * [Bootstrap 5 Tutorial](https://www.w3schools.com/bootstrap5/) - W3Schools
 * [Bootstrap Tutorial](https://www.tutlane.com/tutorial/bootstrap) - tutlane
-* [Front End Libraries: Bootstrap](https://www.freecodecamp.org/learn/front-end-libraries/bootstrap)
+* [Front End Development Libraries Certification: Bootstrap](https://www.freecodecamp.org/learn/front-end-libraries/bootstrap) - freeCodeCamp
 
 
 ### Java
@@ -195,7 +196,7 @@
 * [Codecademy jquery track](https://www.codecademy.com/learn/jquery)
 * [ES6 Interactive Guide](http://stack.formidable.com/es6-interactive-guide/#/)
 * [Functional Programming in Javascript](https://github.com/ReactiveX/learnrx)
-* [JavaScript Algorithms and Data Structures Certification](https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/basic-javascript)
+* [JavaScript Algorithms and Data Structures Certification](https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/) - freeCodeCamp
 * [Javascript interactive tutorial on CodeCademy](https://www.codecademy.com/learn/javascript)
 * [JavaScript interactive tutorial on CoderMania](http://www.codermania.com/javascript/lesson/1a/hello-world)
 * [JavaScript Tutorial](https://www.w3schools.com/js) - W3Schools
@@ -219,17 +220,22 @@
 
 #### jQuery
 
-* [Front End Libraries: jQuery](https://www.freecodecamp.org/learn/front-end-libraries/jquery)
+* [Front End Development Libraries Certification: jQuery](https://www.freecodecamp.org/learn/front-end-libraries/jquery) - freeCodeCamp
 * [jQuery Tutorial](https://www.w3schools.com/jquery/) - W3Schools
 
 
 #### React
 
-* [Front End Libraries: React](https://www.freecodecamp.org/learn/front-end-libraries/react)
+* [Front End Development Libraries Certification: React](https://www.freecodecamp.org/learn/front-end-libraries/react) - freeCodeCamp
 * [React Tutorial](https://react-tutorial.app)
 * [React Tutorial](https://www.w3schools.com/react/) - W3Schools
 
 
+#### Redux
+
+* [Front End Development Libraries: Redux](https://www.freecodecamp.org/learn/front-end-development-libraries/redux) - freeCodeCamp
+
+
 ### Kotlin
 
 * [Kotlin tutorial](https://kotlinlang.org/docs/tutorials/)
@@ -305,6 +311,7 @@
 ### Python
 
 * [Codecademy Python course](https://www.codecademy.com/learn/python)
+* [Data Analysis with Python Certification](https://www.freecodecamp.org/learn/data-analysis-with-python/) - freeCodeCamp
 * [How to Think Like a Computer Scientist: Learning with Python, Interactive Edition](http://interactivepython.org/courselib/static/thinkcspy/index.html)
 * [Learn Python](http://www.learnpython.org)
 * [Learn Python Step by Step](http://www.techbeamers.com/python-tutorial-step-by-step)
@@ -314,6 +321,7 @@
 * [Python Programming Language](https://www.geeksforgeeks.org/python-programming-language/) - GeeksforGeeks
 * [Python Tutorial](https://www.tutlane.com/tutorial/python) - tutlane
 * [Python Tutorial](https://www.w3schools.com/python) - W3Schools
+* [Scientific Computing with Python Certification](https://www.freecodecamp.org/learn/scientific-computing-with-python/) - freeCodeCamp
 
 
 ### R