This document provides an overview of applied linguistics. It defines applied linguistics as looking at how linguistics can help understand real-life problems in areas such as education, psychology, and sociology. Some key areas of applied linguistics mentioned include language acquisition, corpus studies, sociolinguistics, language education, clinical linguistics, language testing, workplace communication, language planning, and forensic linguistics. The document also discusses the scope and need for applied linguistics and provides examples of how linguistics can be applied to education, law, and analyzing information and effects.