The concept of this book is a reference guide to help you when you get stuck remembering how to do something in Photoshop and to give inspiration on what method and/or settings to use for a particular task.
The assumption is that the reader is already up to speed with Photoshop's general layout, and the location of the various tools, effects, filters, etc; but might sometimes need a memory jog on how to achieve a specific task. If this is you, then my ‘Fix It In Photoshop’ will be an ideal companion to your workflow, as you can jump into the book up as a quick reference guide.
The book is designed as a go-to quick reference source as opposed to a manual. In this way it will get you up to speed If you do choose to read cover to cover, then everything is grouped logically, so you will certainly pick up lots of great tips on using Photoshop.