This report summarizes key findings from the literature on effective developmental education practice. It is designed to promote discussion among community college educators and state agency staff in Connecticut as they consider how to improve outcomes for their many students who are academically unprepared to succeed in college. One common theme in this literature is that no single set of practices will be effective with every student. There is a broad consensus in the literature, shared by Community College Research Center (CCRC) researchers, that educators ought to take a holistic approach to developmental education. The practices described in this report are grouped in tabular form into five categories: (1) program management and organization; (2) assessment, instruction, and curriculum; (3) student supports; (4) faculty; and (5) public policy. Concluding this guide is a description of a process whereby faculty and student support staff can use data on student outcomes to identify barriers to and opportunities for program improvement.