L Mark Peterson Author & Editor

Arthur E. Jongsma, Jr., PhD, is the Series Editor for the bestselling PracticePlanners®. Since 1971, he has provided professional mental health services to both inpatient and outpatient clients. He was the founder and Director of Psychological Consultants, a group private practice in Grand Rapids, Michigan, for 25 years. He is the author or co-author of over fifty books and conducts training workshops for mental health professionals around the world.

L. Mark Peterson, ACSW, is Program Manager for Bethany Christian Services’ Residential Treatment and Family Counseling programs in Grand Rapids, Michigan.

William P. McInnis, PsyD, is in private practice with Aspen Psychological Services in Grand Rapids, Michigan. He is coauthor of the bestselling the Adolescent Psychotherapy Treatment Planner and the Adolescent Psychotherapy Progress Notes Planner.

Timothy J. Bruce, PhD, is Professor and Associate Chair of the Department of Psychiatry and Behavioral Medicine at the University of Illinois College of Medicine. He maintains a diverse clinical practice and is active in classroom and clinical teaching as well as educational program administration.