Expert clinicians and researchers provide practicing primary health care providers the first clinically oriented, comprehensive textbook devoted to the evaluation and treatment of insomnia. Summarizing the latest findings published in a wide variety of medical journals, these experts concisely review the primary insomnias and those due to medical, neurological, and psychiatric problems, and to fully discuss the latest pharmacological and nonpharmacological treatments for insomnia. A simple algorithm for the differential diagnosis of insomnia is included.