Paul Bonnenfant is a former research director at the CNRS, associate researcher at IREMAM and CEFREPA. Also a photographer and Pyrenean climber, he achieved many firsts in the Pyrenees, some of which with Paul Mortier, Jean and Pierre Ravier and other local climbers. Preparing a degree in sociology at the Faculty of Letters in Bordeaux at the end of the 1950s, he studied during the Algerian War of Independence, which was,