The document discusses the structure and types of paragraphs. It defines a paragraph as a group of sentences that introduces, develops, and concludes one main idea. A standard paragraph structure includes a topic sentence, supporting details, and a concluding sentence. Different types of paragraphs are narrative, expository, descriptive, persuasive, analytical, comparative, and problem-solution. The document also covers paragraph development, patterns, and achieving unity, cohesion and coherence.