"For readers who equate the 'institution' narrowly with the Atlantic trade and the cotton-growing industry in the antebellum American South, this short introductory text broadly and viably sketches the ubiquity of slaving throughout world history. Gordon emphasizes the paradoxes of slavery and freedom thriving together in ancient Athens, the large and long-running trades from Africa across the Red Sea and around the Indian Ocean, and the reciprocal Christian-Muslim Mediterranean raiding for captives from the sixteenth to early nineteenth centuries. Each section includes four interestingly varied primary sources selected to provoke group discussion. Shackles of Iron offers instructors a lot to work with in a compact, accessible format."—Joseph C. Miller, Emeritus, University of Virginia