This document provides guidelines for writing in a clear and readable style for professional communication. It recommends 3 principles: 1) Be concise by eliminating unnecessary words, redundancy, and jargon. 2) Be direct by using active voice and replacing "zombie nouns" with verbs. 3) Use proper stress emphasis by writing tighter sentences, focusing paragraphs, and placing the main point at the end of sentences. Follow these principles to improve the readability of your writing.