This series covers revolutionary advances in biotechnology. In very basic terms, it explains complex concepts in a way that even advanced middle school students will understand. The set up of the text is user-friendly with bold, colored fonts for the headings of each section lending to easy navigation of the text. The photos and graphics are very helpful in explaining the concepts when they are present. The series includes books on cloning, genetic testing and gene therapy, and the human genome project. Each text has a table of contents, index, and full-color photographs and illustrations. The visual appeal of the books is high. Students are more likely to pick up these books and look them over than other nonfiction books, but they still will mostly be used in a research capacity. The font on this series is best suited for middle school, while the content is lower-senior high school. There are few graphics, but the ones that are included are good. The only item that seems to be lacking from the titles is the ethical questions presented with each of these topics. (The Biotechnology Revolution) Reviewer: Susan Allen; Ages 11 to 18.