javascript

http://tutorialzine.com/2015/05/15-awesome-and-free-javascript-books/

http://eloquentjavascript.net/

http://speakingjs.com/es5/index.html

https://developer.mozilla.org/en-US/docs/Web/JavaScript

http://bonsaiden.github.io/JavaScript-Garden/

https://leanpub.com/javascript-allonge/read

https://addyosmani.com/resources/essentialjsdesignpatterns/book/

http://read.humanjavascript.com/

http://chimera.labs.oreilly.com/books/1234000000262/index.html #Programming JavaScript Applications

https://leanpub.com/html5shootemupinanafternoon/read

https://addyosmani.com/backbone-fundamentals/

http://chimera.labs.oreilly.com/books/