The caravan has made life possible for people in the desert thanks to the camel. In the inhuman aridity of the Ténéré, it is always surprising to find an azalaï, a salt caravan. The blocks of salt it loads have the strange shape of an automobile piston, the rod of which is a little thick ... Each block is wrapped in a mat of palm leaves, because the camels have to be unloaded every evening and reloaded every morning. - Ténéré - Niger - 1966