As globalization and technological change remake the labor market, it has become increasingly clear that the United States must create better educational and workforce training programs if we are to remain competitive. In order to help disadvantaged and low-skilled workers advance in the new labor market, educational opportunities are needed that can boost their ability to succeed in high-demand career areas that pay better wages. America's federally funded adult education programs represent an underutilized resource in meeting this goal. Targeting the nearly 39 million adults in this country who have yet to earn a high school credential, these programs have served as a lifeline for decades in helping millions of high school dropouts build their reading, writing, and math skills. However, despite their promise, such programs have generally been less successful in helping students make the transition into postsecondary education and training required for better-paying jobs. As a result, many students who have obtained an alternative high school credential such as the General Educational Development (GED) certificate have remained on the sidelines as our labor market has moved forward into the 21st century. This report provides a much-needed review of innovations in the adult education field aimed at helping high school dropouts overcome these barriers and make the transition to postsecondary education and training. Highlighting results from rigorous studies, the report documents reforms that have a number of promising methods for promoting dropouts' transition to college, including the development of new, more rigorous college- and career-readiness curricula; enhanced supports such as assistance with college admissions and applying for financial aid; and increased on-the-ground connections with postsecondary institutions. The review finds that the most promising program reforms integrate basic skills and GED instruction within specific career fields and provide enhanced supports to ease students' entry into college. The following are appended: (1) Journals, Organizations, Initiatives, and Programs Reviewed; (2) Full List of GED-to-College Bridge Programs; and (3) Full List of Concurrent Enrollment Programs.