The Therapeutic Community Model (TC) occupies a distinctive position within the depth-psychology and addiction-treatment corpus: it is neither a purely clinical protocol nor a mere self-help fellowship, but a structured social environment in which community itself functions as the primary instrument of transformation. The corpus, anchored substantially in Avery and Kast’s 2019 edited volume, traces the TC from its Synanon origins through the proliferation of programs such as Phoenix House, Daytop Village, and San Patrignano, attending throughout to the tension between fidelity to core principles and adaptive revision demanded by shifting epidemiological and cultural realities. George De Leon’s formulation of ‘community as method’ serves as the theoretical keystone, grounding the model’s peer-driven, mutual-help ethos in a social-learning framework consonant with Cozolino’s neuroscientific account of the brain as a social organ. Critical voices in the corpus interrogate the model’s encounter with medication-assisted treatment, its contested behavior-shaping tools, its financial vulnerability under short-term insurance regimes, and its deployment in correctional settings where security imperatives complicate therapeutic aims. The corpus also registers the TC’s global diffusion—into Latin America, Europe, Asia, and Australia—and the emergence of trauma-informed adaptations. What remains contested is whether abbreviated or hybridized forms can preserve the model’s transformative substance once its residential duration and hierarchical social structure are attenuated.