Bill Hunt wrote:.....Both Ben Wilmore and Scott Kelby have some good tips in their PS books. I have the each author's CS2 version. I also recommend Katrin (Kate) Eismann's Photo Retouching with Photoshop books.....
The 'bible' type books are fine if you want a detailed guide as to what the program will do. If (and this is my preference) you want a guide to using particular techniques then I second Bill's recommendation. For Scott Kelby have a look at
"Scott Kelby's 7-Point System for Adobe Photoshop"
"The Photoshop Book for Digital Photographers"
and also the Eismann book.
At different times I have found each to be invaluable, when trying to achieve a result and not quite remembering how I did it last time (senior moments are getting more frequent )