Prescriptive lexicography is the practice of creating dictionaries that provide specific guidelines on how words should be used. It focuses on establishing rules for grammar, spelling, and usage, often reflecting the preferences of a particular group or authority. This approach aims to promote a standard language and correct usage among speakers and writers. In contrast to descriptive lexicography, which documents how language is actually used, prescriptive lexicography emphasizes what is considered "correct." This can influence education, publishing, and communication by setting norms that users are encouraged to follow for clarity and consistency in language.