Just to confuse the people in our warehouse, we've decided to add another Biology Coloring Workbook to our catalog. Actually, we couldn't decide between the two. This one is from The Princeton Review and covers a lot of the same material as the HarperCollins edition. They both contain textual information on one page and a coloring page on the other. They both help students to affix the concepts of biology in mind, through coloring as they learn. The other one suggests specific colors for structures. This one makes less particular demands, often just asking you to use a "light color," "dark color," or "bold color," giving the artist in you more flexibility. On the pro side, I have found that the presentation of topics in this book corresponds much more closely to the presentation of topics in our biology books. Basic chapters are: Introduction to Biology, Biology of the Cell, Principles of Genetics, DNA and Gene Expression, Principles of Evolution, The Origin of Life and Simple Life Forms, Biology of Plants, Biology of Animals, Human Biology, Reproduction and Development, and Principles of Ecology. Colored pencils or felt-tip pens are recommended. 156 plates. Contains evolutionary content.