Portraiture and Friendship in Enlightenment France examines how new and often contradictory ideas about friendship were enacted in the lives of artists in the eighteenth century. It demonstrates that portraits resulted from and generated new ideas about friendship by analyzing the creation, exchange, and display of portraits alongside discussions of friendship in philosophical and academic discourse, exhibition criticism, personal diaries, and correspondence. This study provides a deeper understanding of how artists took advantage of changing conceptions of social relationships and used portraiture to make visible new ideas about friendship that were driven by Enlightenment thought.