This book describes 83 theories of behaviour change, identified by an expert panel of psychologists, sociologists, anthropologists and economists as relevant to designing interventions. For each theory, the book provides a brief summary, a list of its component constructs, a more extended description and a network analysis to show its links with other theories in the book. It considers the role of theory in understanding behaviour change and its application to designing and evaluating interventions. Behaviour change theories include: Action Theory Model of Consumption Affective Events Theory Aids Risk Reduction Model Behavioural-Ecological Model of Adolescent Aids Prevention CEOS Theory Change Theory Classical Conditioning COM-B System Consumption as Social Practices Containment Theory Control Theory Differential Association Theory Diffusion of Innovations Ecological Model for Preventing Type 2 Diabetes in Minority Youth Extended Information Processing Model Extended Parallel Processing Model Feedback Intervention Theory Focus Theory of Normative Conduct General Theory of Crime General Theory of Deviant Behaviour Goal Directed Theory Goal-Framing Theory Goal Setting Theory Health Action Process Approach Health Behaviour Goal Model Health Behaviour Internalisation Model Health Belief Model Health Promotion Model I-Change Model Information-Motivation-Behavioural Skills Model Information-Motivation-Behavioural Skills Model of Adherence Integrated Theoretical Model for Alcohol and Other Drug Abuse Prevention Integrated Theory of Drinking Behaviour Integrated Theory of Health Behaviour Change Integrative Model of Behavioural Prediction Integrative Model of Factors Influencing Smoking Behaviour Integrative Model of Health Attitude and Behaviour Change Integrative Model of Factors Influencing Smoking And Attitude And Health Behaviour Change Model of Pro-Environmental Behaviour ... And more