This dictionary, the first edition was published in 1998, has already become the basic reference work in the field of sociology Hispanic. It has advised the publication of this new edition, revised, greatly enlarged and updated. The continued expansion of the social sciences, its role as social engineering professional to know the social and educational policy, government policies and public and private actions is reflected in numerous new terminology, so publishers have introduced or expanded those terms of greater weight and force. Moreover, in addition to this edition forty three new partners, including leading Latin American social scientists, making room and the broader Hispanic community.