The Teaching and Learning International Survey (TALIS) is a large-scale and authoritative international study of teachers. It is conducted by the Organization for Economic Cooperation and Development (OECD) to collect and compare information about teachers and principals in different countries in such key areas as the training and professional development of teachers, performance appraisals, school management and educational goals and practices, job satisfaction, and confidence in one's professional abilities. [This article was translated by John Riedl.]