Don't Make Me Think, Revisited

This book's a great guide to creating usable websites, highlighting common design flaws found in various sites and offering suggestions on how to avoid such issues. The book's concise, following its own design rules. The only reasons for not achieving 5 stars were; the book's examples are now dated, and a lot of the advice I found I intuitively knew; though have experienced a number of sites and systems where that was not the case meaning this resource definitely has an audience in need of its guidance.