An introductory medical guide to algology, the discipline focused on assessing and treating pain. Written by Dr. Jacques Jaume, the book presents pain as a clinical concern requiring careful diagnosis, multidisciplinary treatment, and attention to patients' quality of life. It explains the principles of pain medicine, common therapeutic approaches, and the role of specialized care in managing acute, chronic, and complex pain. Intended for readers seeking a clear overview of how modern medicine understands and addresses pain, the work emphasizes both medical knowledge and practical care. Published by Dervy in 2003, it offers a French-language overview of a field that bridges clinical practice, patient support, and therapeutic innovation.