Norma has coauthored 12 books with experts on topics ranging from holistic animal care, stress management, and brain optimization to dog training and Santa Claus. Her first book, The Natural Cat (Penguin/Plume), written with feline expert Anitra Frazier, remains as her bestselling book, with over 500,000 copies sold to date. Also with Frazier, Norma wrote It's a Cat's Life (Berkley/Putnam). She coauthored three books with Paul Owens, who is referred to as the "original" Dog Whisperer, including the bestselling The Dog Whisperer and The Puppy Whisperer, and their most recent book, The Dog Whisperer Presents: Good Habits for Great Dogs (all published by Adams Media). In addition, Norma coauthored two books with holistic veterinarian Dr. Mary Brennan, The Natural Dog (Plume) and Complete Holistic Care and Healing for Horses (Trafalgar Square). She also coauthored Switched-On Living: Easy Ways to Use the Mind/Body Connection to Energize Your Life with stress management expert, Jerry Teplitz, Ph.D., Switched-On Selling: Balance Your Brain for Sales Success with Dr. Teplitz and Tony Alessandra, and Switched-On Networking: Balance Your Brain for Networking Success with Dr. Teplitz and Donna Fisher (all published by Happiness Unlimited Publishing).Most recently, Norma coauthored The Santa Story Revisited: How to Give Your Children a Santa They Will Never Outgrow with Arita Trahan and, along with Trahan, published a children's picture book, The Santa Story and Tina (Downstream Publishing).