The American Psychiatric Publishing Textbook of Geriatric Psychiatry is a comprehensive textbook written by author David C. Steffens, focusing on the subject areas of psychiatry and geriatrics. Published by the American Psychiatric Association Publishing in 2009, this hardcover book contains 694 pages and is a valuable resource for medical professionals interested in geriatric psychiatry. The textbook covers a wide range of topics within the field and is designed to provide a thorough understanding of the unique mental health challenges faced by older adults.