Noam Chomsky was born in Philadelphia, Pennsylvania, on December 7, 1928. He studied linguistics, mathematics, and philosophy at the University of Pennsylvania. In 1955, he received his Ph.D. from the University of Pennsylvania. Chomsky is Institute Professor (emeritus) in the Department of Linguistics and Philosophy at the Massachusetts Institute of Technology and Laureate Professor of Linguistics and Agnese Nelms Haury Chair in the Program in Environment and Social Justice at the University of Arizona. His work is widely credited with having revolutionized the field of modern linguistics. Chomsky is the author of numerous best-selling political works, which have been translated into scores of countries worldwide. Among his most recent books are Hegemony or Survival, Failed States, Who Rules the World?, Requiem for the American Dream, and What Kind of Creatures Are We? Marv Waterstone is Professor Emeritus in the School of Geography and Development at the University of Arizona, where he has been a faculty member for over 30 years. He is also the former director of the University of Arizona Graduate Interdisciplinary Program in Comparative Cultural and Literary Studies. His research and teaching focus on the Gramscian notions of hegemony and common sense, and their connections to social justice and progressive social change. His most recent books are Wageless Life: A Manifesto for a Future beyond Capitalism (University of Minnesota Press; co-authored with Ian Shaw) and Geographic Thought: A Praxis Perspective (Routledge; co-edited with George Henderson).