Dr Cohen received his DDS degree from McGill University in Montreal and his MS degree and certificate in periodontics from the University of Washington School of Dentistry, where he now serves as a visiting assistant clinical professor in the Department of Periodontics. He has authored numerous articles on continuing education and is the editor of Interdisciplinary Treatment Planning: Principles, Design, Implementation (Quintessence, 2008). For the past 25 years, Dr Cohen has lectured nationally and internationally on the topic of comprehensive treatment planning, and he maintains a private practice limited to periodontics and implants in the Seattle area.The Seattle Study Club is the brainchild of Dr Cohen. An advanced educational organization, the Seattle Study Club consists of clinicians dedicated to raising the level of practice within their profession. This “university without walls” has more than 6,500 members in approximately 250 chapters in the United States, Canada, Australia, Germany, Spain, Taiwan, and Great Britain. Each club provides clinical treatment-planning sessions designed to increase total case management, problem-solving sessions, a faculty of specialists, and dedicated comprehensive treatment planning. National lecturers are showcased in small group settings, allowing intimate sharing of state-of-the-art treatment for the patient. The Seattle Study Club also publishes a quarterly interdisciplinary treatment-planning journal (The Seattle Study Club Journal) and sponsors lectures, conferences, and symposia. Guidance and assistance is also provided to each of the locally based study clubs.