7 Rules for Creating Gorgeous UI (Part 2). A guide to visual aesthetics, written by a nerd (Erik D. Kennedy)

If you want to be a good UI designer, you’ll have to learn how to put text over images in an appealing way. This is something that every good UI designer does well and something every bad UI designer does piss-poorly— or just doesn’t do, in which case you’ll have a huge leg up after reading this section! (medium)