All right. The massive open online course version of Contemporary Educational Psychology has been revised for many times, which has been well received by teachers and students, and won major honors such as the "Twelfth Five-Year" undergraduate national planning textbook and the national excellent textbook of general higher education. The online open course edition of Contemporary Educational Psychology, edited by Liu Rude, is a university textbook. According to the learning and teaching needs of educational psychology, this edition has set up an executive summary before each chapter, and highlighted key concepts in each chapter.