1) THE WHOLE NATURAL WORLD is in the pages of these incredible pocket references - topics range from animals to weather to wildflowers. 2) ONLY FIELD GUIDES NOW SOLD IN THE TRADE MARKET FOR AGES 6-10. National Geographic Pocket Guides are younger and more user-friendly than Audubon's or Peterson's. 3) REVIEWED BY EDUCATIONAL CONSULTANTS and carefully researched to meet National Geographic's standards for accuracy. 4) PHOTOGRAPHS AND ILLUSTRATIONS...