Zazie Todd is a social psychologist, certified dog trainer, and founder of the popular blog Companion Animal Psychology, where she writes about everything from training methods to the human-canine relationship. She also writes a column for Psychology Today and has received the prestigious Captain Haggerty Award for Best Training Article in 2017. Todd lives in Maple Ridge, BC, with her husband, one dog, and two cats.

Dr. Marty Becker-also known as "America's Veterinarian"-is the author of multiple New York Times bestsellers and serves on the Board of Directors and as Chief Veterinary Correspondent for the American Humane Society.