This volume emerged from the 25th International Week at Frankfurt University of Applied Sciences. The contributions it contains are based on papers that examine social work in the areas of drug use and treatment, HIV/AIDS and other infectious diseases, and social work in prisons. They cover aspects of the history and international development of social work, plus drug policy and practice. All the contributions provide an up-to-date insight into the fascinating yet difficult task of social work in dealing with people with addiction problems.With contributions byLaura Arasteh-Roodsary, Patrick Arnold, Zhyldyz Bakirova, Dr. Azizbek Boltaev, Tianzhen Chen, Prof. Dr. Daniel Deimel, Dr. Jiang Du, Tynchtyk Estebes uulu, Simon Fleißner, Stefan Förster, Prof. Dr. Volker Happel, Dr. Gulnaz Isabekova, Sandugash Issmagulova, Melina Jakob, Olim Khusenov, Musaeva Nurgul Kuseinovna, Ruihua Li, Sarah Maier, Kudabekov Medet, Dr. Fadi Meroueh, Dr. Ingo Ilja Michels, Dr. Babak Moazen, Babette Müllerschön, Dalida Mukasheva, Amir Rashidov, Aisuluu Shailoobek, Maike Sinead O'Reilly, Daniela Staack, Prof. Dr. Heino Stöver, Hang Su, Dr. Dinara Yessimova, Prof. Dr. Min Zhao and Yan Zhao.