The primary colors and how they combine to make secondary colors are demonstrated. After each color is introduced, the young reader is asked to guess at things of the same shade that are not shown. The page following suggests things that might have been mentioned. The colors are bright enough to knock your eyes out and the locky pictures emphasizing each color in turn are heavily outlined in black. These are not pleasing, but they certainly make sure that the colors show up. The book was designed to cross two laps, a boon to teachers and parents drilling children in color recognition. The other purpose of the book is to stimulate the imagination. It's hard to guess whether or not the book will do so, but all of the subtler and softer shades have been left out and imagining them should prove to be a relief to adult and juvenile eyes.