The papers collected in this volume present multiple views on the skills required of LSP teachers and their preparation for the profession. The authors, whose experience comes from diverse educational contexts, ponder on the nature of the necessary knowledge and know-how as well as on the methods used in the professional training of the LSP teachers. The authors have undertaken to formulate a proposal, based on both empirical data and personal experience of the teachers, which would provide us with operational and effective methodological solutions to　be employed while teaching　language for specific purposes. Les textes runis dans le prsent volume exposent les ides relatives aux comptences des enseignants des langues de spcialit et aux parcours de leur prparation au mtier. Issus de divers contextes ducatifs, les auteurs s’interrogent sur la nature des savoirs et savoir-faire ainsi qu’aux modalits de leur formation. Cette rflexion, qui prend appui sur les donnes empiriques ou les expriences personnelles, s’oriente vers la proposition des rsolutions mthodologies oprationnelles au service de l’enseignement des langues sur objectifs spcifiques.