The Chicago Manual of Style

High Quality Content by WIKIPEDIA articles! The Chicago Manual of Style (abbreviated in writing as CMS or CMOS, or verbally as Chicago) is a style guide for American English published since 1906 by the University of Chicago Press. Its 16 editions have prescribed writing and citation styles widely used in publishing. It is "one of the most widely used and respected style guides in the United States," and is considered the de facto guide for American English style, grammar, and punctuation. The CMS deals with aspects of editorial practice, from American English grammar and usage to document preparation.