Colonic diverticulitis remains among the most common surgical diseases encountered by general and colorectal surgeons. As the incidence of diverticulitis rises worldwide, so does our knowledge regarding its pathophysiology and treatment. Over the past several decades, there have been many new advancements and trends in the management of diverticulitis, with many more to come in the near future. This text provides a comprehensive and state-of-the-art review of diverticulitis, serving as an invaluable resource for medical and surgical trainees, practicing surgeons, gastroenterologists, emergency medicine physicians, primary care physicians and researchers. Opening chapters address the changing epidemiology in diverticulitis, pathophysiology and diagnosis, and the many classification and scoring systems. The focus then shifts to the acute management of diverticulitis, with an emphasis on the most up-to-date scientific information and the ongoing debate surrounding antibiotic, with chapters outling the management of patients after a successfully treated episode of diverticulitis, including the evolving indications for elective surgery. The book concludes with special considerations in diverticulitis, such as the immunosuppressed patient and right-sided diverticulitis. Contributors for each chapter are experts in their respective fields, recognizing the differences in practice across continents while sticking to the principals of evidence-based medicine. Diverticulitis combines unbiased and evidence-based information with the experience and wisdom of experts in the field. Given the many controversial topics in the management of diverticulitis, there is a strong need to amalgamate the information into one concise text.