Here are my recommended reads if you would like to understand the ideas and practical workings behind the concepts of colour management.
Real World Color Management by Bruce Fraser, Fred Bunting, Chris Murphy
A good thick resource of a book, in desperate need of updating but with some interesting and still relevant information.
Amazon (US) Amazon (UK)
CMYK 2.0: A Cooperative Workflow for Photographers, Designers, and Printers by Rick McCleary.
A recommended read. Rick makes sure that he flags the important points again (and again) but there is nothing wrong with repetition if the underlying message is right – and it is here.
Amazon (US) Amazon (UK)
Practical Colour Management by Rob Griffith
A good solid read on the subject and available as a very inexpensive download. There is no reason to not get it right now:
Colour Space