Hazelden, a not-for-profit organization, has alcohol and drug treatment centers in Minnesota MN, Oregon, Chicago, Illinois IL, and Manhattan, New York NY. Hazelden Publishing operates an online recovery bookstore featuring books, videos, curricula and gifts on the topics of mental health, the 12 Steps, alcoholism and other drug addiction, and more. Our accredited Graduate School of Addiction Studies offers a master's degree in addiction studies as well as a certificate in addiction counseling. The Butler Center for Research conducts clinical and epidemiological research to continuously improve the effectiveness of the drug rehab program and to promote a better understanding worldwide of the disease of addiction.