Book excerpt: Program Evaluation uses a practical, reader-friendly approach to de-mystify evaluation research, clarifying evaluation's relationship to social work practice and providing the knowledge necessary to conduct it. This book assumes some familiarity with traditional research methods and basic statistics or are currently studying them. It contains all necessary definitions and brief explanations of essential research terminology and concepts. However, it relates them directly to their usage in evaluation research, which is often quite diffent from the way they are used in traditional research. Well organized with excellent flow from chapter to chapter, Program Evaluation does not read like a research methods book, making it the most accessible book on evaluation research available.