It is clear to me that this being the fifth edition of this book, which was published in 2007, that this is the book by which all other major Photoshop book authors learned from. You’ll see all of the most popular tricks and techniques described over and over again in other books listed here, and just given the age of the book you’ll know for sure that Dan was the guy to publish these techniques first.
Dan Margulis is a legend in the Photoshop and Photography industry which is why he’s one of the first people named to the Photoshop Hall of Fame. In this 500 page book he packs enough information for anyone to accomplish anything they could imagine in Photoshop. However, if you read my review of Photoshop LAB Color by Dan Margulis, you know that I’m not a huge fan of his writing style. This book is no different, and it being about 150 pages longer makes it even more of a challenge to complete than his LAB Color book. Once again, I can’t deny the importance of this book to the industry and I can confirm there is fantastic content in this book. However, I just can’t endure the authors writing style and inability to “get to the f**king point”.
If you’ve read a lot of Photoshop books and want more depth, or want to know “how the author knew how to do X”, then this is book is for you. I’m 99.9% sure you’ll find the answer for anything you are looking to accomplish with digital photographs in Photoshop with this book, but don’t expect the samples to be easy and enjoyable as those in a Scott Kelby book. I wanted to love this book and I wish I could read it over and over again to pick up on a lot of great information I know is in there from skimming it, but I couldn’t. It was just too tedious for me. I hope you’ll feel differently, but if you don’t then I’d suggest you start with What Photoshop Books Should I Read? and go from there with other choices.