L. Deslandes's 'A Treatise on the Diseases Produced By Onanism, Masturbation, Self-Pollution, and Other Excesses' delves into a controversial topic of sexual health and its consequences on the human body. Written in a straightforward and informative style, the book explores the effects of self-pleasuring and excessive sexual behaviors on physical and mental well-being during the time it was considered a taboo subject. Deslandes's work provides a comprehensive understanding of the medical implications of these practices and offers insights into the societal attitudes towards them in the past. The book is a valuable resource for those interested in the history of medicine and human sexuality. As a pioneering study in the field, it sheds light on the attitudes and beliefs surrounding sexual behaviors in the era it was written. L. Deslandes's thorough research and detailed analysis make 'A Treatise on the Diseases Produced By Onanism, Masturbation, Self-Pollution, and Other Excesses' a must-read for scholars and individuals interested in the intersection of medicine and sexuality.