Information about the triceratops is presented in an attractive format. The physical features of this dinosaur are described in detail as part of the historical narrative which begins with the first discovery of fossil fragments in 1888. The body of knowledge and scientific theories have grown and evolved from that time through the present day. Specific scientists and their contributions are discussed and descriptions are provided of the triceratops habitat and activities. Eight "Triceratops Tales" appear in inset boxes or separate pages providing additional facts beyond that of the text. Numerous black and white photographs, colorful illustrations, and detailed diagrams aid in understanding. Intended for an older audience than many previously published dinosaur books, this series will appeal to students wanting to delve deeper into the study of prehistoric creatures. Includes a table of contents, a glossary, a bibliography, and an index. A good reference source for middle grade students and possibly of value to high school scholars, as well. Part of the "Age of Dinosaurs" series. Reviewer: Phyllis Kennemer, Ph.D.