This volume is a collection of 18 papers resulting from a symposium organized for the Society of American Archaeology in Chicago in 1999. The objective was to facilitate discussion on the fundamental problems of the European Early Upper Paleolithic period (c.30k-45k BP), with special focus on innovative techniques, methods, or theoretical frameworks that have usefully resituated the problems and knowledge of the EUP. The work is divided into three sections - The transition from LMP to EUP; Questions of typological significance and technological organization; Explaining interassemblage variability. The sites and finds discussed range from Portugal and Spain as far as the Middle East and the Ukraine.