By: nobody Cervantes' greatest work, Don Quixote, is an amazing parody with a realistic idea. Don Quixote is a country gentleman, an enthusiastic visionary crazed by his reading of romances of chivalry, who rides forth to defend the oppressed and to right wrongs. The theme of the book, in brief, concerns Hidalgo Alonso Quijano, who, because of his reading in books about chivalry, comes to believe that everything they say is true and decides to become a knight-errant himself. He assumes the name of Don Quixote de la Mancha and, accompanied by a peasant, Sancho Panza, who serves him as a squire, sets forth in search