The Design of Everyday Things - A timeless book, The Design of Everyday Things explores the fundamentalprinciples behind all design, and how to understand the psychology behind how we use things, and why they frustrate us.
Don't Make Me Think - Originally written in 2000, Don't Make Me Think is one of the original books on web design and usability. Although it's been around for a while, the goals and lessons of the book are universal and apply to websites today.
CS50x - HarvardX (edX) - An introduction to the intellectual enterprises of computer science and the art of programming.
Coursera - "Compilers" by Stanford - The course explores how high-level languages are compiled to low-level assembly.
Udemy - Online Courses - Learn Anything, On Your Schedule
Rationality: From AI to Zombies - How to make good decisions under uncertainty.