I am in no way affiliated with this book other than I just purchased it and am about half way through and I am very impressed.
I have found it to be very informative, educational, and entertaining. It covers the theory of color and how we perceive it. It is 'interactive' in that it uses roll overs, successfully, to demonstrate concepts.
You may view a preview of the book athttp://library.constantcontact.com/download/get/file/1103617399871-26/Hidden+Colors+Prev+Gry+Garness.pdf
If you purchase before Feb. 7, it half off or 6.25pounds (about $10.00). Use the discount code 'premiere'.