Jakob Nielsen's 10 general principles for interaction design. They are called "heuristics" because they are broad rules of thumb and not specific usability guidelines.
UX Myths collects the most frequent user experience misconceptions and explains why they don't hold true.
This graph shows the stats of mobile screen resolutions worldwide based on over 10 billion monthly page views.
64 UX case studies, highlighting why some designs work, and others fail horribly. Contextualised with practical UX psychology and cheatsheets.
