As a professional herbalist with a practical orientation, Don believes in seeing results. His knowledge of what works comes from his years of experience in treating the widest range of conditions amongst thousands of clients. In 1987, Don along with his partner Sandy began to offer an intensive herbal training program called the Herbal Healing Journey, and they also developed a home study program. Over the years they have created many herbal programs and Don has taught at many colleges and universities including: The University of British Columbia, The University of Victoria, Bastyr University, Langara College and Royal Roads University.
Don is the author (Sandy Ollsin - editor) of Pathways To Healing: A Guide to Ayurveda, Herbs, Dreambody and Shamanism. It is a Time/Life One Spirit Book Club selection that is used as the textbook for his Herbal Programs.
In 2013 Don completed his MA in Environmental Education and Communication at Royal Roads University. The focus of his thesis was online learning, and transitioning his classes into an online format. Don's teachings are about healing the environment and communities with sustainable medicine. He is and always will be a Grassroots Herbalist. He wishes to empower people with the knowledge to heal themselves and others, using herbs and holistic healing systems. He now offers online herbal education and mentorship through his two programs: the Online Herbal Course and the Herbal Mentorship Collective.