Book excerpt: This fully updated compendium of research, history, scientific theory, and practice amalgamates various evidence-based research findings and their practical implications for professionals who use yoga or refer patients to yoga practice. Chapters cover the implementation of yoga for various illnesses and conditions from paediatrics to geriatrics. The expanded second edition includes updated contributions from leading biomedical researchers and therapists, brand new research on telemedicine, chronic pain, and mental health conditions, and a new chapter specifically on the implementation of yoga therapy in medical systems and healthcare with a focus on international perspectives and public perceptions. This second edition now includes a more narrative tone, a 'How to Read the Book' section, and a significantly expanded index to increase accessibility.