Making an outline before writing an essay helps organize one's thoughts and ideas in a logical manner. An outline presents material in a hierarchical structure and establishes relationships between ideas. It involves determining the purpose, audience, and thesis statement. The outline then lists the main topics and subtopics to support the thesis through body paragraphs. Topic sentences for each paragraph should directly relate to and support the thesis. Outlining helps ensure paragraphs stay focused and saves time when writing the rough draft.