Book excerpt: Crossing both disciplinary and geographical boundaries, this volume draws together a number of important contributions from acknowledged leaders in three respective fields: the trade in bodily commodities, biomedical tourism and migration of health care professionals. It explores and maps out the key characteristics of this emerging, although as yet poorly researched global trade, questioning how, where and why bodies cross borders, whether this exacerbates existing health inequalities and how these circulations impact on healthcare services. In addition the book invites comparisons of the ways in which body parts, patients and medical professionals cross national borders, elucidating common themes, concerns and issues.