This document discusses the importance of effective language use and provides guidelines for communicating clearly. It identifies six key characteristics of effective language: being concrete and specific rather than vague, concise rather than verbose, familiar rather than obscure, precise and clear rather than inaccurate or ambiguous, constructive rather than destructive, and using an appropriately formal tone. Examples are given to illustrate each characteristic. The document also provides techniques for having effective language use, such as knowing the content and audience.