If you are a designer who has to explain to developers what they are doing wrong, get this book (or maybe the next edition, out soon). I loved this book for how well it explained every bad interface design blooper I had ever seen at that point & helped me understand why developers created many of these problems. It helped me explain to developers why there were better solutions & how to design them. It also contains an excellent introduction to user-centered design. It's a very well organized and valuable reference for interface designers & a great gift for any open-minded developer interested in good UI design. I'm looking forward to his next edition.