THE LOUT DOCUMENT FORMATTING SYSTEM Lout is a document formatting system similar in style to LaTeX. It offers a very full range of features, including PostScript and plain text output, optimal paragraph and page breaking, automatic hyphenation, PostScript EPS file inclusion and generation, equation formatting, tables, diagrams, rotation and scaling, sorted indexes, bibliographic databases, running headers and odd-even pages, automatic cross referencing, multilingual documents including hyphenation (most European languages are supported), formatting of computer programs, and more. Lout may be extended by writing definitions which are much simpler than the equivalent troff of TeX macros. Lout is written in highly portable ANSI C, runs on most platforms, and is distributed under the GNU public license. Its primary web site is jeffreykingston.id.au/lout Lout was created by Jeffrey H. Kingston (jeff@it.usyd.edu.au) of the School of Information Technologies at the University of Sydney.