Lignes d'Erre

In 1968 French educator Fernand Deligny set up a network of workers to provide for the care of a community of autistic children. One of the tasks the workers undertook was to trace the children's pathways, resulting in a large collection of maps that Deligny proposed were ways of thinking about coherent self-expression among those who did not conform to the expectations of conventional language.

The tactic of the ''lignes d'erre" or wandering lines was taken up by deCerteau in his study of the strategies and tactics of everyday life; and also by Deleuze and Guattari.