https://github.com/0xroman1/Scuffed_Low_Level_Stash
Scuffed Stash for everything Binary Exploitation and Reverse Engineering related
https://s3-us-west-2.amazonaws.com/secure.notion-static.com/e07c1270-ecc2-4029-9097-1ccb974f710e/68747470733a2f2f6d65646961312e74656e6f722e636f6d2f696d616765732f31666330393437653033626132363236333237303237613566343233666463392f74656e6f722e676966
Here are some recommended recourses to browse through if you are just starting off.
AT&T Syntax versus Intel Syntax
x86 and amd64 instruction reference
Understanding the differences between 8bit, 16bit, 32bit, and 64bit