Textbooks are very important in the life of college teachers and students because first, they are employed for various purposes, and second their cost is one of the major expenses during the college years. Riazi and Mossalanejad (2010: 52) underscore the importance of textbooks and maintain: “Textbooks play a very crucial role in the realm of language teaching and learning and are considered the next important factor in the Second/Foreign language classroom after the teacher.” In the same vein, McKeachie (2002) goes even further and states that ‘‘the major predictor of what students learn is not the teaching method but the textbook’’ (p. 14).
Therefore, the weight given to the textbooks makes their selection a critical decision for the students and teachers, and their supply a great opportunity for the authors and publishers.