The slides for this text are organized into chapters. This lecture covers Chapter 16, providing an overview of transactions, concurrency control, and recovery. This chapter is the first of a sequence (Chapters16, 17, and 18) on transaction management that might be covered in full in a course with a systems emphasis. It can also be used stand-alone, as a self-contained overview of these issues, in a course with an application emphasis. It covers the essential concepts in sufficient detail to support a discussion of physical database design and tuning in Chapter 20.