Gr 4-6-Beginning with a full-color photo of a boy holding a rack of freshly baked cookies, Smelling discusses such topics as humans' and animals' smell and taste sensors, how odors are produced, and artificial devices including the Breathalyzer. The text is well organized and flows smoothly, even when it addresses potentially difficult scientific terms such as "vomeronasal" and "cribriform plate." Touching discusses the importance of touch for infants, how touch therapy and acupuncture work, prosthetics, and more. Both books include sidebars that provide complementary information and interesting trivia ("Parrots are the best tasters in the bird family"). Large, clear, full-color photos and diagrams extend the texts.-Christine A. Moesch, Buffalo & Erie County Public Library, NY Copyright 2002 Cahners Business Information.