This document provides tips for writers on things they should know but often don't. It discusses 10 writing lessons, including using proper sentence structure and grammar, avoiding overly descriptive paragraphs, pushing yourself to do your best writing while still developing your skills, using an appropriate vocabulary for your audience, using sentence fragments sparingly, and accepting critique to improve. The document emphasizes reading widely to learn from other writers, writing often to develop the skill, and seeking feedback from knowledgeable critics.