Stereotypes consist of a set of beliefs—closely related and shared by a number of people—about the personal attributes of members of a particular group. They are ideological products, as they embody certain social interests, promoting and justifying them. Prejudices, in turn, involve making judgments without prior reasoning, lacking sufficient evidence or understanding. However, most research on prejudice has focused almost exclusively on its negative aspects, to the extent that prejudice is often equated entirely with negative attitudes toward specific outgroups. This book presents theoretical and methodological approaches that address both of these categorical constructs—stereotypes and prejudices—drawing on research conducted in various social contexts across Ibero-America.