In “Fissure of the Anus and Fistula in Ano,” Lewis H. Jr. Adler presents a thorough examination of anorectal disorders, specifically focusing on anal fissures and fistulas. The book is a definitive resource, characterized by a blend of meticulous clinical observations and comprehensive research, which offers profound insights into the pathophysiology, diagnosis, and innovative treatment approaches for these common yet often distressing conditions. Adler's literary style exhibits a clear and accessible tone, enriched with case studies and illustrative diagrams, making it an essential reference for both practitioners and scholars in the field of colorectal medicine. Adler's extensive background in surgery and gastroenterology informs his meticulous approach to the subject. His insights are drawn not only from years of clinical practice but also from a keen interest in improving patient outcomes in colorectal health. This experience, coupled with his commitment to advancing medical knowledge, has made him a respected voice in the dialogue surrounding gastrointestinal disorders. His practical experience and academic rigor lend significant authority to the text, setting it apart in the realm of medical literature. This book comes highly recommended for medical students, residents, and practicing healthcare professionals seeking to deepen their understanding of complex anorectal issues. Adler'Äôs detailed exploration serves as both a primer and a sophisticated exploration, encouraging healthcare providers to approach their patients with a well-informed, empathetic mindset. By shedding light on these often-overlooked conditions, he emphasizes the importance of awareness and knowledge in successful patient treatment.