The Societe mathematique de France provides a set of classes, packages and bibtex styles that are used in its publications. They are based on AMS classes (whose code is sometimes recopied) and mainly "upward-compatible". Their main features are: quite different design; new environments for typesetting some information in two languages (altabstract, alttitle, altkeywords); if necessary, use of babel (option frenchb) and deactivation of some features of frenchb. Includes smfart.cls, smfbook.cls, smfplain.bst, smfalpha.bst, amongst opthers. The author is Antoine Chambert-Loir.