The document discusses the power of the English language. It defines different types of power, such as instrumental power which comes from authority, and influential power which comes from persuading others. It explains how language features like lexical choice, grammar, phonology can be used to exert different types of power. The power of English comes from it being widely spoken internationally, giving access to resources, career opportunities, communication, and travel. Challenges in using English include pronunciation, vocabulary, grammar, listening skills and writing.