Peter Lasersohn is Professor of Linguistics and Philosophy at the University of Illinois at Urbana-Champaign. He completed his Ph.D. in Linguistics at Ohio State University in 1988, and taught at the University of Texas at Austin, the University of California at Santa Cruz, and the University of Rochester before his appointment at Illinois in 1996. He is the author of two previous books, A Semantics for Groups and Events (Garland, 1990), and Plurality, Conjunction and Events (Kluwer, 1995); and of shorter articles in journals including Language, Linguistics and Philosophy, Linguistic Inquiry, Journal of Semantics, Natural Language Semantics, Synthese, and Inquiry.