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The Albert Ellis Institute, founded by Albert Ellis, is a non-profit organization dedicated to the advancement of Rational Emotive Behavior Therapy (REBT), a form of psychotherapy developed by Ellis. REBT focuses on identifying and challenging irrational beliefs and behaviors that contribute to emotional distress. The institute provides training, research, and clinical services to promote the understanding and application of REBT in various settings, including mental health, education, and personal growth.