The Associated Press Stylebook (generally called the AP Stylebook), alternatively titled The Associated Press Stylebook and Briefing on Media Law, is a style and usage guide for American English grammar created by American journalists working for or connected with the Associated Press journalism cooperative based in New York City. The Stylebook offers a basic reference to American English grammar, punctuation, and principles of reporting, including many definitions and rules for usage as well as styles for capitalization, abbreviation, spelling, and numerals.
The first publicly available edition of the book was published in 1953. The first modern edition was published in August 1977 by Lorenz Press. Afterwards, various paperback editions were published by different publishers, including, among others, Turtleback Books, Penguin's Laurel Press, Pearson's Addison-Wesley, and Hachette's Perseus Books and Basic Books. Recent editions are released in several formats, including paperback and flat-lying spiral-bound editions, as well as a digital e-book edition and an online subscription version. Additionally, the AP Stylebook also provides English grammar recommendations through social media, including Twitter, Facebook, Pinterest, and Instagram.