The Audubon Society Field Guide to North American Wild Flowers Eastern region is a comprehensive non-fiction book published by Knopf Doubleday Publishing Group in 1979. It features 888 pages filled with information and illustrations on various wildflowers found in the Eastern region of North America. Written by William A. Niering, National Audubon Society Staff, and Nancy Olmstead, this book is a valuable resource for nature enthusiasts and those interested in botany. With a durable hardcover format and insightful content, this field guide serves as a valuable companion for anyone looking to explore the beauty and diversity of North American wildflowers.