The 3rd Edition of The Oxford Textbook of Geriatric Medicine brings together specialists from across the globe to provide every physician and health care provider involved in the care of older people with a comprehensive resource on the medical, social, and psychological issues they are likely to encounter in their practice and research. Beyond these issues, this comprehensive text provides insights into global population ageing, ageing-relevant policy developments, healthy ageing, lifecourse, multimorbidity, personalised and person-centred care.New material has been added throughout with a strong focus on integrating the impact of age-related physiological and cellular changes with the development of age-related diseases and conditions. Sections on sarcopenia, nutritional health, frailty and related geriatric syndromes have been expanded. Geriatric care principles from public health, primary and specialized care have also been updated and expanded. New models of care in general medicine and surgery and related sub-specialties, outpatient and emergency care, rehabilitation, oncology, palliative medicine and long-term care relevant to older adults are discussed in detail. In summary, the 3rd Edition of The Oxford Textbook of Geriatric Medicine 3e articulates important new global demographic trends and clinical practice patterns, the scientific basis of age-related diseases and conditions, and the ethical, legal, and socioeconomic concerns for healthcare policy and systems relevant to older adults around the globe.