While school vouchers have captured the headlines, a different policy has captured the students. Tuition tax credit laws are now entrenched in Arizona, Florida, Pennsylvania, Rhode Island, Iowa, and Georgia, and they affect far more students. Yet few people understand the nature of these policies or the political and legal issues surrounding them. This book provides a comprehensive analysis of the structure, legality, and policy implications of tuition tax credits, which have garnered only scant attention even while expanding to cover more students than the voucher policies they're designed to emulate. At a time when tax credit policies are becoming a major form of American school choice, this book offers insights into both the strengths and weakness of the approach.