This document provides an overview of Communicative Language Teaching (CLT) through a literature review. It begins by defining CLT as an approach that emphasizes developing students' communicative competence over grammatical mastery. The origins of CLT in Britain in the 1960s are then discussed, noting dissatisfaction with prior methods. Major characteristics of CLT are outlined, including a focus on language functions over forms, emphasis on fluency alongside accuracy, and use of authentic materials and tasks to engage students in meaningful communication. Both advantages and disadvantages of implementing CLT are acknowledged.