The papers in this volume were originally collected for a symposium entitled Recent Developments in Bone Tool Studies, organized for the 69th annual meeting of the Society for American Archaeology held in Montreal (Canada) on April 2nd, 2004. The objective of the symposium was to illustrate how recent developments in approaches, methods and techniques in worked bone studies can contribute to our understanding of basic problems encountered in archaeological research, with case studies from Europe and North America essentially, but also from Latin America and Oceania.