(3) 4-6 Facts about dinosaurs are presented in National Geographic's energetic, kid-friendly style, with plenty of graphics and sidebars. Each chapter takes a superlative ("Biggest," "Deadliest," etc.) and runs with it, using subheadings such as "Species Smackdown" to present information in playful and entertaining ways. More of a browsing book than a reference resource, but budding paleontologists will find this hard to put down. Ind.

Reviewer: Janet Dawson

(3) 4-6 Illustrated by Cynthia Turner. Very comprehensive and supplemented with striking photographs, medical illustrations, micrographs, and archival material, ten chapters explore human body systems; life cycle; immunology; and ongoing research in genetics, transplantation, and robotics. "Bet you didn't know" and "Add it up" boxes expand on the information. A final "Body Atlas" section contains anatomical diagrams and summarizes main points. Reading list, websites. Glos., ind.

Reviewer: Gail Hedges