Published in 2000 by Marval, *Gang* is a French‑language paperback that examines the world of street gangs through a blend of sociological analysis and visual documentation. Author Jean‑Marc Barbieux combines field observations with a rich collection of photographs, offering readers a vivid portrait of the social marginality that surrounds gang life. The work delves into the motivations, structures, and daily realities of these groups, situating them within broader questions of urban inequality and youth culture. While grounded in academic research, the book remains accessible, using striking imagery to complement its textual insights. At 176 pages, it serves as a concise yet comprehensive resource for scholars, policymakers, and anyone interested in the complex dynamics of contemporary gang phenomena.