Health literacy is a critically important skill that helps people to become active participants in their health care. The 2003 National Assessment of Adult Literacy showed that more than 75 million Americans had basic health literacy skills, indicating that as many as 1 in 4 Americans can have difficulty understanding information about their healthcare. Persons in racial and ethnic minorities are likely to have even lower levels of health literacy. Twenty-four percent of blacks (9.5 million persons) and 41% of Hispanics (21 million persons) have below basic levels of health literacy. These persons have lower levels of health literacy and compelling evidence, including our own findings (see below), link race and ethnicity to disparities in health via health literacy. Members of minority groups and older adults are more frequently affected by chronic diseases such as cancer, high blood pressure, heart attack, stroke, diabetes, elevated cholesterol, asthma, hepatitis C, HIV infection, mental health disorders and many others. The twin burdens of chronic disease and low levels of health literacy thus fall disproportionately on those most in need - members of minorities and older adults, all of whom likely to experience one or more chronic conditions while often not having the health literacy skills to help them cope.