diff --git a/books/free-programming-books-subjects.md b/books/free-programming-books-subjects.md
index eced23af7..d8b10bac9 100644
--- a/books/free-programming-books-subjects.md
+++ b/books/free-programming-books-subjects.md
@@ -810,7 +810,7 @@ Kerridge (PDF) (email address *requested*, not required)
 * [Making Sense of Stream Processing](https://assets.confluent.io/m/2a60fabedb2dfbb1/original/20190307-EB-Making_Sense_of_Stream_Processing_Confluent.pdf) - Martin Kleppmann (PDF)
 * [Mostly Adequate Guide to Functional Programming](https://mostly-adequate.gitbooks.io/mostly-adequate-guide/content/) - Mostly Adequate Core Team
 * [The Pure Function Pipeline Data Flow v3.0 ---- the Grand Unified Programming Theory](https://github.com/linpengcheng/PurefunctionPipelineDataflow) - Lin Pengcheng
-* [Type Theory and Functional Programming](https://www.cs.kent.ac.uk/people/staff/sjt/TTFP/)
+* [Type Theory and Functional Programming](https://www.cs.kent.ac.uk/people/staff/sjt/TTFP/) - Simon Thompson
 
 
 ### Prompt Engineering
@@ -845,7 +845,7 @@ Kerridge (PDF) (email address *requested*, not required)
 
 * [BIOS Disassembly Ninjutsu Uncovered 1st Edition](https://bioshacking.blogspot.co.uk/2012/02/bios-disassembly-ninjutsu-uncovered-1st.html) - Darmawan Salihun (PDF)
 * [Hacking the Xbox: An Introduction to Reverse Engineering](https://www.nostarch.com/xboxfree/) - Andrew "bunnie" Huang
-* [iOS App Reverse Engineering](https://github.com/iosre/iOSAppReverseEngineering) (PDF)
+* [iOS App Reverse Engineering](https://github.com/iosre/iOSAppReverseEngineering) - Zishe Sha (PDF)
 
 
 ### Search Engines