Originally published in French in 1997 and appearing here in English for the first time, David Lapoujade's William James: Empiricism and Pragmatism is both an accessible and rigorous introduction to James's thought and a pioneering rereading of it. Examining pragmatism's fundamental questions through a Deleuzian framework, Lapoujade outlines how James's pragmatism and radical empiricism encompass the study of experience and the making of reality and reopens the speculative side of pragmatist thought and the role of experience in it. The book includes an extensive afterword by translator Thomas Lamarre, who illustrates how James's interventions are becoming increasingly central to contemporary debates about materialist ontology, affect, and epistemology that strive to bridge the gap between science studies, media studies, and religious studies.