Robin Raybould's The Sibyl Series of the Fifteenth Century examines the startling and sudden change that occurred in the representation of the sibyls throughout Europe during the early Renaissance. Raybould describes how and why during this period the number, names, attributes and prophecies of these archaic prophetesses were selected and stabilized thus providing new witness to the Christian message in sharp contrast to earlier representations where the sibyls had played a minor role in the history of classical and Christian divination and prophecy. The book examines all the fifteenth-century instances of these series, as well as the manuscripts which describe them, identifies the origin of the sibylline prophecies and suggests reasons for the widespread popularity of this new artistic phenomenon.