This book is not a travel writer’s documentary tale about his adventures. In that sense, it is not a continuation of “Kon-Tiki,” “Aku-Aku,” “Ra,” or “Fatu-Hiva.” “The Ancient Man and the Ocean” is a collection of previously published articles and reports that Thor Heyerdahl processed and brought together into a logical sequence. The book presents the author’s views on the routes of human migration and on the origins of cultures, which he defended in the discussion that followed the voyages of the primitive ships “Kon-Tiki” and “Ra”—voyages that, contrary to specialists’ predictions, managed to cross the Pacific and Atlantic Oceans.