Originated by Dr Albert Ellis, a prominent twentieth-century psychologist, Rational Emotive Behaviour Therapy (REBT) is a significant cognitive–behavioural approach to counselling and psychotherapy. Rational Emotive Behaviour Therapy Integrated provides a comprehensive view of REBT, and presents a vivid account of Dr Ellis’ life and his contributions to the development of REBT. It covers REBT’s historical development, ABC (activating events, belief system and consequences) framework, theoretical and philosophical foundations, relationship with various religions, atheism and morality, therapeutic process and techniques, and practical applications. The book includes multiple cases of psychological disturbance, representing different categories of irrational belief. Various principles such as unconditional self-acceptance, unconditional other acceptance, and unconditional life acceptance are explained through these cases to help the reader attain a firm understanding of psychological disturbance and possible remedies. It is a comprehensive reference for all major past and recent contributions to REBT theory and research.