Here are my Nature books:
1) "Botany in a Day: The Patterns Method of Plant Identification," by Thomas J. Elpel
2) "Sierra Nevada Wildflowers," by Elizabeth L. Horn
Jim Andrews 3) "Edible and Medicinal Plants of the West," by Gregory L. Tilford
Jim Andrews 4) "The Forager's Harvest: A Guide to Identifying, Harvesting, and Preparing Edible Wild Plants," by Samuel Thayer
Jim Andrews 5) "Early Uses of California Plants," by Edward K. Balls
Jim Andrews 6) "Edible and Useful Plants of California," by Charlotte Bringle Clarke
Jim Andrews 7) "Common Edible and Useful Plants of the West," by Muriel Sweet
Jim Andrews 8) "Discovering Sierra Trees," by Stephen F. Arno
Jim Andrews 9) "National Audubon Society: Field Guide to Trees, Western Region," by Elbert L. Little
Jim Andrews 10) "Smithsonian Handbook: Trees," by Allen J. Coombes