This document compares the structure of paragraphs and essays. It notes that paragraphs typically have a topic sentence, supporting sentences, and concluding sentence, while essays have an introductory paragraph with a thesis statement, multiple supporting paragraphs, and a concluding paragraph. The document also discusses how not all paragraphs need concluding sentences if they are part of a longer piece. It provides examples of elements that can be included in introductory paragraphs like background information, facts, or a thesis statement. Finally, it outlines different organizational plans for body paragraphs such as chronological order or logical division of ideas.