The book provides a comprehensive overview of the current knowledge about Clostridioides (C.) difficile (formerly known as Clostridium difficile) and Clostridioides difficile infections (CDI). The diseases caused by C. difficile range from mild diarrhea to fulminant and in some cases fatal colitis. Historically, CDI was considered mainly as a hospital-acquired problem. Today, a significant portion of CDI is community acquired. Triggered by the introduction of new antibiotics, hypervirulent and multi-drug resistant strains of C. difficile (e.g., C. difficile ribotype R027) have emerged and spread across the globe. The volume covers the microbiology, pathophysiology, epidemiology, risk factors for CDI, diagnosis, clinical pictures, treatment and prophylaxis. It includes an extensive reference list that allows an easy navigation through the original research publications. Clostridioides difficile helps the reader gain a better understanding of C. difficile, the challenges that may arise and the available treatment options. Given its broad coverage and features, it will appeal to a wide readership, from gastroenterologists through general physicians, nurses, and other healthcare providers, to students.