An overview of self-monitoring and an extensive bibliography on the topic is presented. Self-monitoring involves systematic self-observation followed by self-recording. There is substantial evidence that self-monitoring has utility as an assessment procedure and as a behavior modification technique. Self-monitoring also has several assets in terms of therapeutic practicality: It is easy to learn and use, it can be utilized by many different clients with diverse problems and in numerous environments, and it is not dependent on extensive therapist contact or time. The overview deals with self-monitoring both as a form of behavioral assessment and as a form of behavior modification (or behavioral self-control). Definitions, good research and treatment examples, current trends and issues, and a summary of the bibliography, lists of key references are given in each section of the overview. (Author)