This article is a summary of a report prepared for the University Council for Educational Administration Program Improvement Project for the Wallace Foundation. This explores the research base for educational leadership preparation programs, specifically examining literature on program features. The review covers context, candidates, faculty, curriculum, design, delivery, pedagogy, internships, student assessment, mentoring and coaching, comprehensive leadership development, and program evaluation. In addition to summarizing the major findings in these program feature areas, the article provides a critical evaluation of the substantive and methodological gaps and future research directions.