Lectures for the IVAS, the AHVMA and the AVMA, and is co-founder of the College of Integrative Veterinary Therapies. He is a director of the National College of Natural Medicine, and authored the Manual of Natural Veterinary Medicine. Dr. Marsden is extensively trained in alternative medicine, including Chinese herbology, acupuncture and naturopathic medicine. He has a veterinary and naturopathic practice in Edmonton, Alberta. In 2010, Dr. Marsden was named Teacher of the Year by the AHVMA.