This field guide dedicated to wildlife of Yellowstone National Park is an information-packed, pocket-sized book that introduces park visitors to the animals, plants, insects and more that reside in Yellowstone National Park in a colorful and portable package. Published in cooperation with Yellowstone National Park Association, this Nature Guide to Yellowstone National Park contains full-color photos and easy-to-understand descriptions. Here is the perfect companion guide for the 3 million visitors who travel to Yellowstone National Park every year. This field guide dedicated to wildlife of Yellowstone National Park is an information-packed, pocket-sized book that introduces park visitors to the animals, plants, insects and more that reside in Yellowstone National Park in a colorful and portable package. Published in cooperation with Yellowstone National Park Association, this Nature Guide to Yellowstone National Park contains full-color photos and easy-to-understand descriptions. Here is the perfect companion guide for the 3 million visitors who travel to Yellowstone National Park every year. Ann and Rob Simpson are professional photographers, authors, and noted national park experts, having spent years involved with research and interpretation in the national parks. Their recent national park books include Wildflowers of Shenandoah National Park (FalconGuides) and Nature Guide to Shenandoah National Park (FalconGuides). They live in Stephens City, Virginia.