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.
CodeGuppy - JavaScript coding site for kids, teens and creative adults!
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.
Swift Playgrounds - Learn serious code on your iPad in a seriously fun way
Rationality: From AI to Zombies - How to make good decisions under uncertainty.
PictoBlox - Coding for kids: Program robots. Make games. Do much more.