J. Peter May is professor of mathematics at the University of Chicago and the author of several books, including A Concise Course in Algebraic Topology and Simplicial Objects in Algebraic Topology, both in the Chicago Lectures in Mathematics series. Kathleen Ponto is assistant professor of mathematics at the University of Kentucky.
""All researchers in algebraic topology should have at least a passing acquaintance with the material treated in this book, much of which does not appear in any of the standard texts."" (Kathryn Hess, Ecole Polytechnique Federale de Lausanne)""