Mental Health Workbook: 3 Books in 1: Cognitive and Dialectical Behavioral Therapy, Acceptance and Commitment Therapy (CBT + DBT + ACT) by David Lawson brings together three practical approaches to understanding thoughts, emotions, and behavior. The workbook introduces Cognitive Behavioral Therapy techniques for identifying and challenging negative thought patterns, Dialectical Behavior Therapy strategies for emotional regulation and coping with difficult situations, and Acceptance and Commitment Therapy methods focused on acceptance, mindfulness, values, and meaningful action. Step-by-step exercises encourage readers to examine automatic thoughts, establish personal goals, strengthen self-esteem, and develop healthier responses to emotional challenges. Written as an accessible self-help resource, the collection is intended for readers interested in CBT, DBT, ACT, emotional well-being, and practical psychological skills that can be applied in everyday life.