François Dosse traces the lives and works of the two authors Gilles Deleuze (1925-1995) and Félix Guattari (1930-1992). Their paths are closely intertwined: Deleuze and Guattari co-authored philosophical and psychoanalytical books over a span of more than 20 years, whose influence on intellectual history is now undisputed. They managed to combine a creative way of thinking with a new style. Dosse's book presents not a single biography, but a multitude of biographies, as the lives, theoretical, and political practices of both are treated in parallel, allowing a third, doubly stretched line of intellectual engagement to emerge. In this way, the author succeeds in providing a material-rich depiction of that era in France, spanning from the early 1930s through May 68 to the upheavals of the late 1980s.