Textbooks are of great significance for teaching and learning. Teaching and learning are tasks carried out by teachers and students. Then they need to know what a good source is to carry out their activities satisfactorily. We should apply widely appropriate and contextually determined criteria in our selection and evaluation of the textbooks.The purpose of the present study was to identify those measures to conduct this investigation successfully. The findings show that the factors influencing the process include teachers, learners and pedagogical principles. And the standards involved in this realm are either general or specific. The general standards have to do with the appearance and the price while the specific principles should satisfy the intended readers' needs and interests. Moreover, this paper presents some useful features and techniques for choosing, judging and altering a coursebook as well as its advantages and disadvantages. The results may be insightful for educational administrators, syllabus designers, material developers, teachers and learners.
