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 work together to give a full portrait of each entry in its natural habitat. 5) RANGE MAPS SHOW THE DISTRIBUTION throughout North America or the world 6) FIELD NOTES give fast answers and fascinating tidbits. 7) HANDY POCKET SIZE AND STURDY COVERS MAKE THESE GUIDES PERFECT FOR FIELD USE. 8) A RULER ON THE INSIDE BACK COVER is a convenient tool when measuring specimens. A GLOSSARY, INDEX, and HOW-TO-USE section make for easy reference. 16 LINED AND BLANK PAGES FOR NOTES AND SKETCHES are provided for recording observations.