National Audubon Society Field Guide to California

Pacific Coast Tree Finder: A Pocket Manual for Identifying Pacific Coast Trees (Finders)

The California Naturalist Handbook

Northern California Nature Guide

California Nature Set: Field Guides to Wildlife, Birds, Trees & Wildflowers of California

The California Field Atlas

Ecology: Global Insights and Investigations

Birds of California Field Guide (Bird Identification Guides)

Valley of the Moon: the Diary of María Rosalia de Milagros

National Audubon Society Field Guide to North American Trees--W: Western Region (National Audubon Society Field Guides)