This is an update on older versions that were written for most if not all of the Photoshop CS family. It is now one of the established standards on Photoshop that are likely to appear on most users' shelves. It is one of the few aimed specifically at photographers and its coverage is therefore concentrated on those tools and techniques most likely to be used.
As always, Adobe tends to change a few methods, moves things from one section of the menu to another, adds a few features and plays around with the interface every time there is a new release. CS6 is no different in those respects and there are more changes to the interface than has been seen for some time, in addition to the other changes. CS6 is smoother, cleaner and faster than before and should provide a better user experience, once its changes from CS5 have been absorbed.
This book has been partly rewritten to reflect those changes, illustrations have been changed and some minor errors corrected. Martin Evening is a technical author whose books are not unduly difficult to read and this is one that is definitely worthy of consideration for the shelf. As it is currently available, and some of the usual competition (from Scott Kelby etc) has yet to arrive in the shops, you may want to add this to your collection now rather than wait weeks or months for the alternatives to arrive.
This is written primarily for the photographer and consequently there are elements of Photoshop, primarily the vector tools borrowed from Adobe Illustrator, much of the web-related content borrowed from Dreamweaver etc and some other portions that are partly or wholly ignored as they are less likely to be used in the context of photo-editing or manipulation. If you want a more all-round look at Photoshop, there are other better suited titles available (although perhaps not yet expressly for CS6)
An updated Photoshop classic, one of the best and most comprehensive available for photographers.