In this issue of Psychiatric Services, a special section focuses on disparities in mental health care for U.S. Latino populations. In the first of four papers, Margarita Alegría, Ph.D., and her colleagues report the results of a study that found a significantly lower rate of access to specialty mental health care among poor Latinos. The authors point out that the results of their analyses, which examined a wide array of variables, suggest that ethnicity and race are part of a more complex socioeconomic construct that must be taken into account in efforts to address inequalities in access to care (see page 1547). In the second study, Richard L. Hough, Ph.D., and his associates examined data from a stratified random sample of more than 1,100 high-risk adolescents who were receiving public-sector care. They found that Latinos were significantly less likely than whites to use specialty mental health care regardless of diagnosis, gender, and age (see page 1556). The third article, by Sergio A. Aguilar-Gaxiola, M.D., Ph.D., and his colleagues, describes a community-driven, consumer-oriented initiative that sought to translate the results of epidemiologic and clinical research into specific actions to address the mental health needs of Mexican Americans in Fresno County, California (see page 1563). In the fourth article, Steven Regeser López, Ph.D., who is also the editor of the special section, discusses ways in which researchers can increase the applicability of their findings to the improvement of care for Latinos (see page 1569).