First look around net, most of what is in books is on the net some where.
Try Youtube...as a search on Youtube type in photoshop tutorials and see what there is.
The is a photoshop TV site with some good stuff..not sure what the site is but google it.

Try these sites
http://www.planetphotoshop.com/category/tutorials

http://photoshoptutorials.ws/

I have more links if you need them.
Eddie