Former president and honorary president of the Montesquieu Society, and the French Society for 18th-century studies, Jean Ehrard has notably published :
- L’Idée de nature en France dans la première moitié du XVIIIe siècle, SEVPEN, 1963; new edit.) Slatkine, 1970; Albin Michel, 1994.
- Montesquieu critique d’art, Paris: PUF, 1965.
- Littérature française (1720-1750), Paris: Arthaud, 1974.
- Lumières et esclavage, Brussels: André Versaille, 2008.
and more than 100 articles on the literature and thought of the French eighteenth century, dispersed in periodicals or collective volumes, a number of which are grouped unde these two titles:
L’Invention littéraire au XVIIIe siècle: fictions, idées, société, Paris: PUF, 1997.
L’Esprit des mots: Montesquieu en lui-même et parmi les siens, Geneva: Droz, 1998.
