Jeff Campbell is a freelance writer and book editor. For twelve years he was a travel writer for Lonely Planet, coauthoring guidebooks on Hawaii, Florida, the Southwest, and other US destinations. As an editor for the past twenty years, he has specialized in animal intelligence and emotions, among other topics. In particular he has worked with Dr. Marc Bekoff on several books, such as the highly regarded The Emotional Lives of Animals. He lives in Northern New Jersey.