The Handbook of Sex Differences is a four-volume reference work written to assess sex differences, with a primary focus on the human species. Based on the authors' highly influential 2008 book Sex Differences, these volumes highlight important new research findings from the last decade and a half alongside earlier findings.
Lee Ellis is a semi-retired American researcher whose last position was that of a visiting professor in the Department of Anthropology and Sociology, at the University of Malaya, Kuala Lumpur, Malaysia.
Craig T. Palmer is a semi-retired associate professor in the Department of Anthropology at the University of Missouri, Columbia, Missouri, USA.
Rosemary Hopcroft is a professor in the Department of Sociology at the University of North Carolina, Charlotte, North Carolina, USA.
Anthony W. Hoskin is a professor in the Department of Sociology, Social Work, and Criminology, at Idaho State University, Pocatello, Idaho, USA.