Marianne Schneider Corey, MA, is a licensed marriage and family therapist in California and a National Certified Counselor. She received her master's degree in marriage, family and child counseling from Chapman College. A fellow of the Association for Specialists in Group Work, she was the recipient of its Eminent Career Award in 2001. She received the Lifetime Achievement Award from the American Mental Health Counselors Association in 2011. Marianne Corey has been involved in leading groups for different populations, providing training and supervision workshops in group process, facilitating self-exploration groups for graduate students in counseling. Both Marianne and Gerald Corey have conducted training workshops, continuing education seminars and personal-growth groups in the United States, Germany, Korea, Ireland, Belgium, Mexico, Hong Kong and China. Marianne had co-authored four other books with Cengage including: ISSUES AND ETHICS IN THE HELPING PROFESSIONS (11th ed.; 2024, with Gerald Corey and Cindy Corey), BECOMING A HELPER (8th ed.; 2021, with Gerald Corey), I NEVER KNOW I HAD A CHOICE (11th ed.; 2018, with Gerald Corey and Michelle Muratori) and GROUP TECHNIQUES (4th ed.; 2015, with Gerald Corey, Patrick Callanan and Michael Russell). Marianne and Jerry have been married since 1964. They have two adult daughters, Heidi and Cindy, two granddaughters, Kyla and Keegan and one grandson, Corey. Marianne grew up in Germany and has kept in close contact with her family and friends there. In her free time, she enjoys traveling, reading, visiting with friends, bike riding and hiking.