For language teaching many resources have been used as a vehicle to teach the language more efficiently in the course of time. It is, however, widely accepted that literature has proved to the the best and the most beneficial resource in language teaching. It is of great value in this sense. This paper will first present some ideas about the use of literature in language teaching, then, I will explain why we use literature, and how we should choose literary texts in our language classes. In the following part, I will present the second part of the paper, which is composed of the literary genres like novel, short story, drama and poetry. And in the closing part, I will give an interpretation of Common European Framework of References (CEFR) and how the use of literature can be implemented into CEFR in language teaching.