This document provides rules and guidelines for using apostrophes, colons, commas, and dashes in writing. It discusses 12 rules for using apostrophes, including showing possession and omitting letters in contractions. It outlines 6 rules for using colons, such as introducing a list after a complete sentence. It then details 21 rules for comma usage covering serial lists, adjectives, names, dates, locations, and separating clauses. Finally, it defines en dashes and em dashes and their uses, such as indicating time periods or adding emphasis.