The document discusses different types of facts and how to convey the significance of facts to readers. There are three main types of facts: facts that provide background, important facts, and really important facts. As the writer, it is important to explain to readers which facts are meant to be emphasized and why a particular fact is significant. This can be done by providing additional context or comparisons to help readers understand the importance or impact of a fact being presented. During the revision process, writers should ensure important facts are not buried and their significance is clear through explanation.