"Don Quixote" is a novel written by the Spanish author Miguel de Cervantes, published in two parts, the first in 1605 and the second in 1615. Considered one of the greatest works of world literature, the book tells the adventures of a nobleman, Alonso Quixano, who loses his mind after reading too many chivalric romances. Inspired by these heroic tales, he adopts the name Don Quixote and sets out in search of adventures as a knight-errant, accompanied by his loyal squire, Sancho Panza.

Don Quixote believes he must fight against injustices and defend the oppressed, but his distorted view of reality leads him to see windmills as giants and flocks of sheep as enemy armies. The contrast between Quixote’s idealism and Sancho Panza's pragmatic view creates humor and philosophical depth, exploring themes like madness, imagination, and the conflict between fantasy and reality.

The work is a satire of the chivalric romances of the time and questions society’s illusions and values. Throughout the book, Cervantes not only creates memorable characters but also reflects on human nature and the quest for meaning and dignity. "Don Quixote" is, therefore, a timeless portrayal of the complexity of life, blending humor and tragedy in an unforgettable journey.