This seems to be the only book available that deals with colour, and colour matching in depth. If you're thinking of spending a fortune on colour management, read this book first.
Highly recommended.

A very good book with a bias to real world production scenarios, involving photography and general image manipulation. Good for artists and production artists.

A start-to-finish guide to creating the best scans and halftoned output from the desktop. The text teaches users how to make scans correctly into image-editing software for output to print on the Web.

This book shows readers a wide variety of real world photo problems and how to repair them. It shows how to remove wrinkles, unwanted backgrounds, colour casts, or image flaws.

This is probably the most comprehensive book written on Adobe Photoshop. Everything is mentioned here from the basics (resolution, ppi, lpi etc), colour matching, to complex layer techniques and creating web graphics.

An excellent book covering many aspects of Adobe Photoshop 6, including painting, image editing etc. The choice for the more creative Photoshop user.