Don't Make Me Think: A Common Sense Approach to Web Usability
I'll make you bet. I'll bet you that, after finishing Steve Krug's Don't Make Me Think, you will have a brief head-scratching moment when you think "Well, yeah. I knew all that. Sheesh. I just blew 35 bucks." A few moments later it will dawn on you that while, yes, you did somehow know most of what Krug says--or at least it seems you must have known it; it was all so obvious--you've never actually done much of what he suggests.