http://code.tutsplus.com/tutorials/editing-images-in-css-combining-techniques–cms-26061
Rudy Vaughn
Stranger Things Type Generator
http://makeitstranger.com/
Sketch Symbol Best Practices
https://medium.com/@lloyd/sketch-symbol-best-practices-c957511f1188
Anatomy of a Pattern in a Pattern Library
http://bradfrost.com/blog/post/anatomy-of-a-pattern-in-a-pattern-library/
Better web images
http://rorymacrae.co.uk/better-web-images/
Communicating Animation
http://alistapart.com/article/communicating-animation
Why Sketch is More Powerful with a Prototyping Buddy
https://speckyboy.com/2016/08/15/sketch-powerful-prototyping-buddy/