Don Quixote is a Spanish novel by Miguel de Cervantes Saavedra. It follows the adventures of Alonso Quijano, an hidalgo who reads so many chivalric novels that he decides to set out to revive chivalry, under the name Don Quixote. He recruits a simple farmer, Sancho Panza, as his squire, who often employs a unique, earthly wit in dealing with Don Quixote's rhetorical orations on antiquated knighthood.
With his noble sidekick Sancho Panza and (to fit the narrative) a lady love, Don Quixote dons a beat up suit of armor and sets out as knight-errant, battling what he perceives as forces of evil, from rogue knights to fierce giants (which are actually windmills). The first part of the book is farcical (think Monty Python), while the second half is more philosophical. Two notes: for those who don't know, the novel Don Quixote is responsible for the adjective quixotic, meaning: foolishly impractical, marked by rash and lofty romantic ideas or extravagantly chivalrous action. And, as one heck of an endorsement, it was recently voted Greatest Book of All Time by the Nobel Institute.