From email to videoconferencing, telehealth puts real-time healthcare solutions at patients’ and clinicians’ fingertips. Every year, the field continues to evolve, enhancing access to healthcare, supporting clinicians, and improving the patient experience. However, since telehealth is in its infancy, no text has offered a comprehensive, definitive survey of this up-and-coming field―until now. Written by past presidents of the American Telemedicine Association, Understanding Telehealth explains how clinical applications leveraging telehealth technology are optimizing healthcare delivery.