Final answer:
The subject of the book 'Theory and Practice of Counseling and Psychotherapy' pertains to the study of psychotherapy in the college-level health discipline, encompassing various therapeutic approaches and their effectiveness in mental health treatment.
Step-by-step explanation:
The book Corey, G. (2017) Theory and Practice of Counseling and Psychotherapy: Tenth Edition. is a comprehensive resource that covers various aspects of counseling and psychotherapy. This field involves therapeutic treatments that address mental health issues through communication between a therapist and a client. The cited literature explores a range of topics from cognitive behavior therapy, African-American psychology, and the historical context of psychotherapy to more modern approaches and evidence-based practices. Books like Beck, J. S. Cognitive Behavior Therapy and Rogers, C. Client-centered Psychotherapy, among others, contribute to the understanding of therapeutic techniques and their efficacy in treating psychological disorders. Moreover, studies and resources like the American Psychological Association offer insights into the variety of treatment modalities including group therapy and client-centered approaches. The field of psychotherapy is vast and continuously evolving, with research and practice reinforcing the effectiveness of various therapeutic interventions in treating mental health conditions.