Maria Langer (Wickenburg, AZ) is a freelance writer, an author of more than 30 computer books, and an Internet content creator. Her computer books center around Macintosh and Windows how-to topics, including: business and productivity software such as Microsoft Word, Microsoft Excel, and File-Maker Pro; Web publishing software such as Adobe PageMill and Claris Home Page; financial software such as Quicken; and operating system software such as Mac OS.