Descriptions of dinosaurs, arranged by size from small to "gigantic," are presented in double-page spreads. Details on pronunciation and the geologic period in which each lived, along with size guides, extend the information. Illustrations of the various dinosaur species in action appear on garishly colored pages. Parents' tips and a dinosaur map are appended. Glos., ind.

A bright, eye-catching format, naturalistic illustrations, and concise prose introduce readers to 52 dinosaur species, organized by size-small, big, giant, or gigantic. Distinguishing characteristics of each dinosaur (-Utahraptor had clawed feet-) appear in a large font like a headline on each spread; informative sidebars, charts that compare each dino-s size to a human, phonetic pronunciations, and lively interactive prompts (-Have you ever tried digging in dirt to find an earthworm?-) make this an especially engaging primer. A map of dinosaur fossil finds and a glossary are included. Ages 4-8. (Oct.)