 The poem also displays Spenser's thorough familiarity with literary history.The world of "The Faerie Queene" is based on English Arthurian legend, but much of the language, spirit, and style of the piece draw more on Italian epic, particularly Ludovico Ariosto's "Orlando Furioso" and Torquato Tasso's "Jerusalem Delivered".Book V of "The Faerie Queene", the Book of Justice, is Spenser's most direct discussion of political theory.