One of the most difficult questions in education is, how do we know that students have learned what we are trying to teach them? This is particularly difficult for language teachers, who struggle with evaluating their programs and curricula with limited resources and, often, without linguistics knowledge (most especially, without an understanding of SLA). This volume, written chiefly by John Davis and Todd McKay with additional contributors, will provide a step-by-step instructional advice to help language educators conduct a program evaluation, from initial planning through to project design, data collection, analysis, and use of results, to aid teachers and programs in determining whether or not their program is achieving their goals. The book will be useful for those with limited knowledge in this area who are tasked with determining the efficacy of their program and curriculum. Written by a seasoned program evaluator and students in GU's reknowned linguistics program, this short book is practical and timely, and will find an audience in all languages (including EFL) and at all levels.