 It compensates by covering a wide range of anonymous and obscure sources, and volumes of forgotten lore.The book is widely noted for the number and excellence of its illustrations, by Graham Greenfield, and its maps and charts, by James Cook.Guadalupi and Manguel acknowledge Philip Grove's "The Imaginary Voyage in Prose Fiction" (1941), and Pierre Versins' "Encyclopèdie de l'Utopie, des Voyages extraordinaires et de la Science-Fiction" (1972), as precedents and inspirations.