Reddit mentions of Assembly Programming and Computer Architecture for Software Engineers

Some physical book recommendations:

• 21st Century C
  
• C Programming: A Modern Approach
  
• Understanding and Using C Pointers
  
  List of free ebooks: https://github.com/EbookFoundation/free-programming-books/blob/master/free-programming-books.md#c
  
  I highly recommend reading up on assembly as well, since understanding assembly is invaluable for understanding C. You might also enjoy reverse engineering as a topic, especially since it teaches a lot about lower-level architecture.
  
  Physical books:
  
  
• Assembly Programming and Computer Architecture for Software Engineers
  
• Practical Malware Analysis (malware is a good subject for reverse engineering because the only difference between it and other software is intent and they're real non-contrived examples that people won't sue you over for breaking)
  
  Some more (free) e-books:
  
  
• PC Assembly Language
  
• Programming From The Ground Up
  
• Reverse Engineering For Beginners (Understanding Assembly Language)
  
  Other resources: (will add more when I remember/find them)
  
  
• LiveOverflow YouTube Channel
  
• nand2tetris