The art of crosswriting child and adult has had particular appeal in twentieth-century France. The list of mainstream French authors who have written for a juvenile audience is extensive, varied, and prestigious. It includes the names of some of the country's most prominent poets, playwrights, and novelists, such as Max Jacob, Paul Eluard, Jules Supervielle, Jacques Prévert, Eugène Ionesco, Colette, Antoine de Saint-Exupéry, Georges Duhamel, Marcel Aymé, André Maurois, François Mauriac, Jean Giono, Henri Bosco, Marguerite Yourcenar, Julien Green, Marguerite Duras, Michel Butor, Michel Tournier, Claude Roy, Daniel Pennac, and J. M . G. Le Clézio. 1 This essay focuses particularly on authors who have published the same texts for a dual audience of children and adults. It examines the different ways in which they transcend or transgress the so-called borders between adult and children's fiction in order to address readers of all ages.