This document discusses sentence revisions, which involves identifying and rewriting only the worst sentences in a draft. It provides tips on how to do sentence revisions, including copying a bad sentence to a separate document, rewriting it to fix problems, and noting the rationale. Examples are given of before and after sentence revisions, along with explanations for the changes. The types of issues that make a sentence bad, such as being unclear, wordy, or lacking detail, are also outlined.