In this comprehensive work, David Eltis offers a two-thousand-year perspective on the trafficking of people, and boldly intervenes in the expansive discussions about slavery in the last half-century. Using new and underexplored data made available by slavevoyages.org, Eltis offers compelling explanations of why the slave trades began and why they ended, and in the process debunks long-held assumptions, including how bilateral rather than triangular...