This book was written by the author of Real World Camera Raw and Real World Color Management. I own the second of these books and found that it is the best book around for color management, so I gave this book a shot. There are Fourteen Chapters (Building a PS System, Tips & Tricks, Image Essentials, Color Essentials, Color Settings, Digital Darkroom, Making Selections, ... Multimedia and the Web) covering about 915 pages. A very thorough book - which is the reason for the high price tag.
From Chapter one, you can tell that the author isn't going to `gloss over' anything. He goes into depth about how to setup paging files, configure RAM, etc. This is not beginner stuff and is not aimed at someone who just bought CS2 and wants to use it. The book moves directly into "Tips and Tricks." Again, not a beginner chapter, but aimed at getting users who are familiar with PS to use it more efficiently. This one chapter covers about 50% (or more) of the tips in Scott Kelby's Tips and Tricks book - very good!
Chapter 3 (Image Essentials) begins with a very thorough explanation of pixels and paths. It explains bit depth, resolution, types of resampling, CMYK vs RGB, etc. Chapters 4 & 5 provide 125 pages of color - Color Essentials, Color Management, Color Settings. Remember, this guy wrote the book on Color Management, so the level of detail is intense, but the explanations are clear. Finally, on page 227, we break out of the theory and the last 700 or so pages are dedicated to hands-on PhotoShop.
If you are looking for a "step by step" How-to book on PhotoShop, this isn't it. Instead its a comprehensive guide on getting the most out of the best photo software product on the market. Its definitely slanted toward photographers (as opposed to graphical artists). I believe that I've read through most of the CS2 books out there - and purchased a few of them. For me, this provided the most useful information and the clearest explanations.