This report provides state-, regional-, and district-level decisionmakers in the Northeast and Islands Region with a description of the "Compendium of Strategies to Reduce Teacher Turnover in the Northeast and Islands Region," a searchable database of selected profiles of retention strategies implemented in Connecticut, Maine, Massachusetts, and Vermont. The first section of the report provides a brief overview of current research on the impact of teacher turnover on schools and teachers, describes the size and scope of the teacher turnover problem nationally and its impacts on the Northeast and Islands Region, and details the objectives of the Compendium project--its intended purpose and audience. The second section provides an overview of the policy families used to classify and organize the profiles and defines the types of retention policies and programs addressed in the Compendium. Finally, the third section presents the limitations and observations about the study. Appended are: (1) Methodology; (2) Sample Letters to Potential Contacts; and (3) Users Guide for Reading and Navigating the Compendium. (Contains 4 boxes, 3 figures, and 11 tables.) [This report was prepared for the National Center for Education Evaluation and Regional Assistance, Institute of Education Sciences (IES) by Regional Educational Laboratory Northeast and Islands administered by Education Development Center, Inc.]