About the Authors

Gary Landsberg

Gary Landsberg is a veterinary behaviourist in referral practice at the North Toronto Veterinary Behaviour Specialty Clinic in Thornhill, Ontario, Canada. He is a diplomate of both the American College of Veterinary Behaviorists and the European College of Animal Welfare and Veterinary Behaviour. He is a frequent speaker at conferences both home and abroad, and has authored numerous research articles, books and publications for veterinarians and clients including Behavior Advice for Clients from Lifelearn.

Wayne Hunthausen

Dr. Wayne Hunthausen is a veterinarian and pet behavior consultant who has been working with pet owners and veterinarians throughout North America to solve companion animal behavior problems since 1982. He received his Bachelor of Arts (zoology) and Doctor of Veterinary Medicine (1979) degrees from the University of Missouri. Dr. Hunthausen is director of Animal Behavior Consultations in the Kansas City area, which provides behavior consultations and training services for pet owners, as well as a behavior support service for veterinarians.

He currently serves on the Practitioner Board for Veterinary Medicine and the Behavior Advisory Board for Veterinary Forum. In 1996, he is a cofounder of the Interdisciplinary Forum for Applied Animal Behavior and serves on its organization committee. He has served as the president and executive board member of the American Veterinary Society of Animal Behavior.

Dr. Hunthausen is an internationally renowned lecturer on the topic of pet behavior. He frequently writes for a variety of veterinary and pet publications and is co-author of the books, The Practitioner's Guide to Pet Behavior Problems and Handbook of Behaviour Problems of the Dog and Cat; co-editor of the books, Dog Behavior and Training: Veterinary advice for owners and Cat Behavior and Training: Veterinary advice for owners and helped develop and appeared in the award winning child safety video, Dogs, Cats & Kids: Learning to be safe with animals. In 2002, Dr. Hunthausen received the American Animal Hospital Association's PetCare Award. This Award is given in recognition of outstanding contributions to small animal behavior medicine.

In his spare time, he is an avid photographer and enjoys skiing, cycling, movies and traveling with his wife, Jan, as well as hiking with his dog, Bob.

Lowell Ackerman

Dr. Lowell Ackerman is a board-certified veterinary specialist, an award-winning author, an international lecturer, and a renowned expert in veterinary practice management. He is a graduate of the Ontario Veterinary College and a Diplomate of the American College of Veterinary Dermatology. In addition to his veterinary credentials, he also holds an MBA from the University of Phoenix, an MPA from Harvard University, and a Certificate in Veterinary Practice Administration from Purdue University/American Animal Hospital Association. Over his career, Dr. Ackerman has been engaged in specialty practice, primary care practice, academia, consulting industry, and teaching. He is the author and co-author of several books, including Five-Minute Veterinary Practice Management Consult, The Genetic Connection, Effective Veterinary Practice, Owner's Guide to Dog Health, and Cat Health Encyclopedia.


With the printed version of this book now complete, we would like to take the opportunity here on the website, to pay tribute to Dr. R.K. (Robert) Anderson, who recently passed away shortly after his 90th birthday. He will always be fondly remembered not only for his tremendous contributions to our profession, but also for the kind, soft-spoken, supportive and positive person that he was. His achievements, although far too numerous to mention, include being the co-inventor of the Gentle Leader head halter, a founding member of the American College of Veterinary Behaviorists, a "grandfather to the profession" and a mentor to all of us who have followed his path of gentle and positive training and speaking softly to our pets.