Robert Kaplan is no stranger to readers of this journal. His body of work, totaling some 18 books, is highly regarded for its originality, range, and depth. He has made a unique mark in foreign affairs, melding history, geography, and political philosophy in a historically informed yet accessible style. The Return of Marco Polo’s World exhibits the same penetrating style, but is formatted in an anthology of previously published works. Each essay reflects the same degree of acutely insightful and politely provocative analysis.