In highly technical work areas such as anesthesiology, human errors are among the most common causes of complications and incidents. Therefore, it is particularly important to be aware of typical sources of danger and to learn from past mistakes or near-misses. This book contains 111 case reports based on true events, told in a practical and vivid manner. The case reports are partly drawn from the CIRS-AINS database, personally experienced by the authors in this or a similar form, or based on anonymized reports. They describe the most significant complications in anesthesia, ranging from classic to more rare incidents. Error analyses and recommendations for error prevention make this book an excellent tool for quality assurance and error management in anesthesia. All cases.