An advisor to the greatest collectors, an indefatigable advocate of the cause of the primitive arts, the man who brought the works of four fifths of humanity to the pavilion of the Louvre Sessions died in Mexico in August 2001. His name was Jacques Kerchache.Designed from a series of interviews with his family, his friends, the creators, the personalities he met (Jean-Jacques Aillagon, Jacques Friedmann, Anne Kerchache, Alain Kirili, Jean-Pierre Lang, Jean de Loisy, Stéphane Martin, Alain de Monbrison, Jean Nouvel, Orlan, Jean-Charles Pigeau, Jean-Francois Prat, Michel Propper, Paul Rebeyrolle, Sam Szafran, Germain Viatte), this book is neither an exhaustive biography nor a critical essay, but rather an invitation to discover.Discovery of a man, through his expeditions and travels (Africa, Asia, Americas), his struggles (anthology of his manifestos), the exhibitions he ar alisées. Discovery of an adventure, that of the creation of the Sessions pavilion and the musée du quai Branly. Discovery of an extraordinary collection of primitive arts including many pieces reproduced for the first time. Discovery of a universe, his house, never photographed, where works of art are close to objects of curiosity in an atmosphere of "room of wonders".