This collection of articles on the nature of discourse and writing instruction include: "Une demarche de psychologie de discours; quelques aspects introductifs" ("An Application of Discourse Psychology; Introductory Thoughts") (Jean-Paul Bronckart); "Les procedes de prise en charge enonciative dans trois genres de texts expositifs" ("The Processes of Enunciation in Three Types of Expository Text") (Itziar Plazaola Giger, Marie-Claude Rosat, Sandra Canelas); "Effets du changement d'interlocuteur sur l'organisation de dialogue" ("Effects of Changing Interlocutor on the Organization of Dialogue") (Genevieve de Weck, Rosat, Solange von Ins); "The Social Origins of Essayist Writing" (Deborah Hicks); "'Ma chambre' ou: comment lineariser l'espace. Etude ontogenique de textes descriptifs ecrits" ("'My Room' or: How to Linearize Space. Ontogenic Study of Descriptive Written Texts") (Bernard Schneuwly, Rosat); "Le personnage, une entree pour l'ecriture du recit a l'ecole elementaire" ("The Character, an Entree to Narrative Writing at the Elementary School Level") (Catherine Tauveron); "Production de textes en situation de groupe" ("Production of Texts in a Group Situation") (Anna Camps); and "L'apprentissage des capacites argumentatives" ("The Teaching of Argumentation Skills") (Joaquim Dolz). Individual articles contain references. (MSE)