Reddit reviews High Performance Web Sites: Essential Knowledge For Front-End Engineers

First of all, for any software development questions you may have, I suggest you post your questions on Stackoverflow because the people there will surely provide you with answers.

Now, for a list of books I recommend:

JavaScript

JavaScript: The Definitive Guide; if you're new to JS, start with this one.

JavaScript: The Good Parts; not a beginner's book, but a must-read if you are going to use JS

If you are going to be using JS, you will most probably be developing using a framework, and for that I seriously recommend mastering jQuery because as they say, you will write less and do more!

CSS

CSS Mastery: Advanced Web Standards Solutions

Web Usability

Don't Make Me Think: A Common Sense Approach to Web Usability; the book that shows the users' perspective when viewing a website

Performance

High Performance Web Sites: Essential Knowledge for Front-End Engineers and Even Faster Web Sites: Performance Best Practices for Web Developers;if you want to get serious about performance for your websites

It's a lot of stuff, so don't expect it to be one page you can read over and understand everything. Places to look might include:

• https://en.wikipedia.org/wiki/CAP_theorem
  
• https://12factor.net/
  
• http://highscalability.com/all-time-favorites/
  
• https://landing.google.com/sre/book/index.html
  
• https://en.wikipedia.org/wiki/Eventual_consistency
  
• https://www.udacity.com/course/introduction-to-operating-systems--ud923
  
• https://www.amazon.com/gp/product/0596529309