In the wittily titled essay “Petite Poucette” (“Petite Poucette”, 2012), the philosopher casts a glance at the generation of his grandchildren - today’s students, who are able, deftly handling smartphones with one thumb, to move freely, if not physically, then , at least in mental time and space. In addition to apt observations of such unusual creatures, this small book contains a casual summary of the main directions chosen by Serres’ thought over the past half century. The publishing layout is preserved in a4.pdf format.