The document provides information on the key properties of a well-written text, including organization, coherence and cohesion, unity, language use, mechanics, and proofreading. It discusses the importance of structure, logical flow of ideas, consistent tone, appropriate word choices, well-crafted sentences, and clarity. Various elements that ensure these properties are achieved are also described such as different organizational structures, techniques for coherence, principles of language use, mechanics guidelines, and the proofreading process.