This course makes an attempt in exploring the basic ideas of applied linguistics acquainting the learners with the key issues in it so as to prepare them for continuing their studies in this field. It aims to meet the need of those wishing to apply linguistics in various professional fields; focusing upon the central aspects of the discipline and it also aims to develop learners’ basic knowledge and skills in these areas. The first unit deals with the basic understanding of applied linguistics to language teaching. The second unit is about World Englishes, implication of global spread of English for ELT, English as a lingua franca and the historical context of English in relation to the Nepalese context. Likewise, unit three deals with contrastive and error analysis. Unit four, is about the various intercultural approaches and their practice in ELT. The last unit deals with the various approaches and interpretations of critical pedagogy in language learning.