Mark Twain in Japan addresses three principal areas. First, the author considers Japanese translations of Twain’s books, which have been overlooked by scholars but which have had a significant impact on the formation of the public image of Twain and his works in Japan. Second, he discusses the ways in which traditional and contemporary Japanese culture have transformed Twain’s originals and shaped Japanese adaptations. Finally, he uses the example of Twain in Japan as a vehicle to delve into the complexity of American cultural influences on other countries, challenging the simplistic one-way model of “cultural imperialism.” Ishihara builds on the recent work of other researchers who have examined such models of American cultural imperialism and found them wanting. The reality is that other countries sometimes show their autonomy by transforming, distorting, and rejecting aspects of American culture, and Ishihara explains how this is no less true in the case of Twain.