OnlineStylebooks.com is owned and maintained by Mary Beth Protomastro, the founder of Copyediting newsletter, the copy chief of More magazine and former editor of the Time magazine stylebook. OnlineStylebooks.com is not affiliated with any of those publications.

Mary Beth created OnlineStylebooks.com to help copy editors (including herself) quickly consult a variety of style guides. If you know of a manual that’s on the Internet but not on OnlineStylebooks.com, please tell Mary Beth!