This document provides a writing refresher on grammar topics such as capitalization, commas, quotes, apostrophes, homonyms, and formatting. It discusses the proper uses of capitalization for sentences, names, titles, days and months. Commas are used to separate items in lists and connect dependent clauses/phrases. Quotes must have context and use both quotation marks. Apostrophes are used for contractions and showing possession. Homonyms like affect/effect and then/than are defined. Formatting tips include spacing, salutations, and paragraph breaks.