Breast cancer is the most common cancer among Hispanic women in the United States (US) and five-year survival from breast cancer is lower in Hispanic than in non-Hispanic White women. This reduced survival has a number of potential causes, but differential screening rates may be a partial explanation, since Hispanic women have lower breast cancer screening rates than non-Hispanic White women. The overall purpose of the study is to develop and evaluate a culturally-appropriate intervention aimed at increasing screening mammography rates in a clinic-based sample of predominantly Mexican American women in Western Washington.