I received this book while attending a workshop with Whitney Quesenbery and Steve Krug. It was a great seminar with lots of hands-on training in a two-day format.
If you read a lot of books on design and usability there may not be much in this book you have not read before, even so it can be a great resource for sharing with others and as a meta-reference for looking up more information on studies, experiments, and papers.
I also think this is a great book to thumb through while working on a design, maybe picking a random number from 1 to 100, reading that chapter, and then thinking about how it may apply to your design.
From the Susan Weinschenk’s web site:
You design to elicit a response. You want your target audience to buy, read, register — to take action of some kind. Designing without understanding about people is like exploring a new city without a map: results will be haphazard, confusing, and inefficient. 100 Things Every Designer Needs To Know About People covers the psychology research that you need to know in order to design intuitive and engaging websites, software and products that match the way people think, work, and relate.
I rate this book an 8 out of 10 as a reference and as a source of inspiration.