It is obvious that language teaching is a "fashion' like clothes. Every time researchers and teachers seek for new methods of teaching. Even if nowadays there is a great deal of using communicative language teaching methodology, some teachers still revert to use the traditional style of teaching where the teacher takes much of the teaching hours instead of creating a conducive atmosphere for the learners to enhance their interaction with their friends and the tasks under discussion. Hence, it is believed that this book gives invaluable information for the teachers, students and course book writers on how to apply CLT methodology effectively and efficiently in the classroom.