Steven Foster is the author or coauthor of 18 books including the Peterson Field Guide to Medicinal Plants and Herbs: Eastern and Central North America, 3rd Ed. (w/James A. Duke; Houghton Mifflin Harcourt). Foster is also senior author of National Geographic’s A Desk Reference to Nature’s Medicine (w/Rebecca Johnson, National Geographic Books). An acclaimed photographer, his work appears in countless publications. He is a Contributing Editor to HerbalGram, the journal of the American Botanical Council in Austin, TX. He lives in Eureka Springs, AR.