New materialism challenges the mechanistic models characteristic of early modern philosophy that regarded matter as largely passive and inert. Instead it gives weight to topics often overlooked in such accounts: agency, vitalism, complexity, contingency, and self-organization.This collection, which includes an international roster of contributors from philosophy, history, literature, and science, is the first to ask what is "e;new"e; about the new materialism and place it in interdisciplinary perspective. Against current theories of new materialism it argues for a deeper engagement with materialism's history, questions whether matter can be "e;lively,"e; and asks whether new materialism's wish to revitalize politics and the political lives up to its promise.Contributors: Keith Ansell-Pearson, Sarah Ellenzweig, Christian J. Emden, N. Katherine Hayles, Jess Keiser, Mogens Laerke, Ian Lowrie, Lenny Moss, Angela Willey, Catherine Wilson, Charles T. Wolfe, Derek Woods, and John H. Zammito.