About Olivier Leservoisier Books by Olivier Leservoisier Saharan Frontiers Space and Mobility in Northwest Africa edited by James McDougall & Judith Scheele contributions by Peregrine Horden, E. Ann McDougall, Katia Schörle, Charles Grémont, Olivier Leservoisier, Armelle Chopin, Laurence Marfaing, Dida Badi, Mohamed Oudada, Julien Brachet & Fatma Oussedik