This document provides an overview of Rational Emotive Behavior Therapy (REBT) developed by Albert Ellis. It discusses how REBT posits that activating events lead to beliefs which then lead to emotional and behavioral consequences. It notes people can control their reactions by changing their thoughts. Ellis identified 12 typical irrational beliefs that cause distress and provided disputing statements for each. REBT aims to help people suffering unnecessarily by changing irrational thoughts about events that happen to them. It focuses on discovering and breaking down irrational beliefs that hold people back from living rationally.