He's the author of The New Work of Dogs: Tending to Life, Love, and Family. It's about how attached many of us have become to our dogs, treating them more like family members and human surrogates than pets. Katz is also the author of A Dog Year: Twelve Months, Four Dogs, and Me and Running to the Mountain: A Midlife Adventure. He is a member of the Association of Pet Dog Trainers. This interview first aired October 21, 2003.