Whether on gaming devices, in casinos, at online poker, or through internet sports betting – under the title of gambling, an increasing number of diverse and often "invisible" risk potentials are emerging. This book provides a systematic and thorough overview of the phenomena and dynamics of gambling addiction and extensively addresses early detection and the differentiated diagnostics of this particular addictive behavior. It captures the trajectories and categories of gambling behavior, player personalities, and player careers. The author presents the individual components of promising counseling strategies in a concise and practical manner and formulates concrete therapeutic support that addresses the complexity of the situation and its often existential significance – also for the relatives. Cross-professional counseling concepts for various contexts are included.