This document provides guidance on common writing mistakes and areas for improvement. It addresses issues such as informal language, profanity, punctuation, grammar, spelling, run-on sentences, subject-verb agreement, commonly confused words, possessive nouns, pluralization, and contractions. Examples are given of incorrect sentences followed by the corrected version to illustrate the writing issues. Readers are advised to avoid slang, check punctuation rules, use complete sentences, choose words carefully, and spell check their work.