I'm going to write a mini-howto about internationalization of AMS-Book document class in LyX. Herbert Voss solved all my problems about it (many thanks to him), so I'm going to collect all his work (and a bit of mine) to let other people use AMS-Book document class in their language. As soon as possible I'll post everything or an URL. If someone has particular requests or suggestions, please e-mail me. Emanuele P.S.: I don't know how to do a proper internationalization, so I'll write a short paper and add some files. If some know the right way to do...