The Logic Model Guidebook offers a concise, practical overview of the logic modeling process as applied to numerous organizational contexts. Authors Cynthia Phillips and Lisa Knowlton examine the structures, processes, and language of logic models as an emerging tool that improves the design, development, and implementation of change efforts within programs and greater organizational initiatives. Through concise, step-by-step process articulation, enhanced by numerous visual learning guides (sample models, checklists, exercises, worksheets) and case examples, the authors provide students, practitioners, and beginning researchers with invaluable tools to develop and improve these models.