Whats a good Photoshop for beginners book?

[jimothy]

As the title really, my missus is trying to get into photoshop (and she better use it alot as I'm buying her a new MacBook Pro to learn on!), so needs a good book to help her learn.

Can anyone recommend a good beginners guide to get her started? It looks like there's loads of tutorials on YouTube but it'd be good for her to have a reference she can use on the train and will get her started.

Thanks

[beano500]

Personally I like Scott Kelby's approach.