Book excerpt: The Nature of the Nonprofit Sector is a collection of insightful and influential classic and recent readings on the existence, forms, and functions of the nonprofit sector—the sector that sits between the market and government. The readings encompass a wide variety of perspectives and disciplines and cover everything from Andrew Carnegie’s turn-of-the-century philosophy of philanthropy to the most recent writings of current scholars and practitioners. Each of the text’s ten parts opens with a framing essay by the editors that provides an overview of the central themes and issues, as well as sometimes competing points of view. The fourth edition of this comprehensive volume includes both new and classic readings, as well as two new sections on the international NGO sector and theories about intersectoral relations. The Nature of the Nonprofit Sector, Fourth Edition is therefore an impressively up-to-date reader designed to provide students of nonprofit and public management with a thorough overview of this growing field.