Bernard C. Kolster, M.D., is a physical therapist and doctor. He has written a number of books on acupressure and reflexology in German and is the author in English of Partner Massage and Look After Your Back. Dr. Kolster is also a coauthor, in English, of The Reflexology Atlas. He lives in Germany
Astrid Waskowiak, M.D., is a doctor and medical scientific editor. She writes about general medicine, natural healing methods, and medical tips for travelers. Dr. Waskowiak is also a coauthor, in English, of The Reflexology Atlas. She lives in Germany.