This case-based book illustrates and explores common cognitive biases and their consequences in the practice of medicine. The book begins with an introduction that explains the concept of cognitive errors and their importance in clinical medicine and current controversies within healthcare. The core of the book features chapters dedicated to particular cognitive biases; cases are presented and followed by a discussion of the clinician’s rationale and an overview of the particular cognitive bias. Engaging and easy to read, this text provides strategies on minimizing cognitive errors in various medical and professional settings.