"Evaluative thinking is an acquired competence, not at all natural. This book offers the best and most comprehensive materials and exercises available for evaluation teaching and training. Students need practice to develop evaluation skills. These exercises provide opportunities to practice. Stakeholders need to learn to think evaluatively to participate meaningfully in evaluations. Every evaluation is therefore also a teaching opportunity and these materials facilitate the essential understandings needed to engage stakeholders. At the essence of all 72 activities presented by Preskill and Ru.