By William A. Green (Professor of History, Professor of History, Holy Cross College, Worcester, Massachusetts)
By Jonathon Glassman
By David Mills
By Florencia E. Mallon, Gladys McCormick
By Deutsch
By Wendy James, N. J. Allen
By Cecilia Busby, I. M. Lewis
By Chris Wickham (Professor of Medieval History, University of Oxford.)
By Colin Bundy
By Ta-Nehisi Coates
By James Belich
By Adam Hochschild
By Tom Griffiths, Libby Robin
By Aida Edemariam
By Peter Linebaugh
By Kristin Mann (Customer), Richard L. Roberts (Royalty Account)
By Marcus Rediker, Peter Linebaugh
By Joseph C. Miller
By James Sidbury (Professor History, Professor History, University of Texas at Austin, USA)
By Christopher Clapham
By Sven Lindqvist
By Ludewig Ferdinand Romer, Selena Axelrod Winsnes
By William St Clair
By Seymour Drescher
By Stuart Hall (Author)
By Alan Lester
By Robert O. Collins (University of California, Santa Barbara), James M. Burns (Clemson University, South Carolina)
By Michael Twaddle (School of Oriental and African Studies, London, UK)
By Graeme Mount, Stephen Randall
By Professor of Anthropology Brian Fagan (University of California USA)