The book is full of color combination examples. It's just page after page of color patterns. It's great for letting you see how colors look together and the CMYK numbers for it. it's a little eye tangling to see pages up on pages of color combination examples. It would have been nice to see the color combos in something other than a square with patterns of colors on it. But they kept it simple.
This is, in my opinion, the best of the designer's guide to color series. It focuses primarily on the interaction of color in patterns and presents many interesting and useful islamic, japanese, art nouveau, and textile patterns.