SoPSS: Psychotherapy

This book presents essential background necessary for understanding the role of theory in psychotherapy practice, and shows how understanding psychotherapy theory is the first step to becoming an effective therapist.

Alternative Psychotherapies: Evaluating Unconventional Mental Health Treatments addresses concerns about current and newly-emerging mental health treatments that are considered "unconventional."

The SAGE Encyclopedia of Theory in Counseling and Psychotherapy is a two-volume source that traces theory and examines the beginnings of counseling and psychotherapy all the way to current trends and movements.