How can I truly understand programs and their execution?

Question

I want to understand everything about assembly, linking and actual execution of programs including memory assignment, entry points and so on.
Where can I find information on that low level stuff?
I do know how to program using C and assembler languages, but I don't really know what is going on inside the tool chain yet.

Answer 1

This will help
https://www.youtube.com/playlist?list=PLhixgUqwRTjxglIswKp9mpkfPNfHkzyeN

Answer 2

For more detailed and textual reference
https://repo.zenk-security.com/Magazine%20E-book/Hacking-%20The%20Art%20of%20Exploitation%20(2nd%20ed.%202008)%20-%20Erickson.pdf

Answer 3

I though of textual sources initially but this channel seems perfect. Thank you very much!