Carlo De Vito is a lifelong dog owner (Chelsea, a white German Shepherd, and Chief and Cinderella, a pair of Dalmatians) and publishing professional. He is the author of The Everything Puppy Book and coauthor of The Everything Dog Book. He lives in New Jersey and New York.

Amy Ammen is a professional dog trainer and the coauthor of The Everything Dog Book. She conducts training seminars across the United States and has earned obedience titles with breeds from all seven of the American Kennel Club's dog groups. She lives in Milwaukee, WI.