In a world in constant transformation, where social, economic and political dynamics evolve at an accelerated pace, the need to understand the foundations and processes that structure our societies becomes more imperative than ever. Societies in transformation: Sociological perspectives, stratification and integral and sustainable development is a reference work that analyzes, from a rigorous sociological perspective, the factors that shape social stratification and territorial development in the 21st century. This book offers a comprehensive approach to the major sociological currents, their intersections with development and the challenges faced by contemporary societies. It is a work that not only exposes fundamental theories, but also examines how they are manifested in the social and economic reality of Latin America and other regions of the world. The combination of classical theoretical frameworks with critical and emerging perspectives provides a solid basis for the analysis of power structures, processes of social change and models of sustainable development.