"Theory and Practice of Counseling and Psychotherapy" (Updated 10th Edition) by Gerald Corey provides a comprehensive overview of the major theoretical approaches to counseling and psychotherapy. The book covers twelve key theories, including psychoanalytic, Adlerian, existential, person-centered, Gestalt, behavior, cognitive-behavior, reality, feminist, postmodern, and family systems therapy. Each chapter discusses the key concepts, therapeutic processes, techniques, and applications of each approach. Corey also integrates a multicultural perspective and emphasizes the importance of developing a personal counseling style. The updated edition includes the latest research, ethical standards, and technological advancements in the field.