The book is a dark and satirical short story presented as a series of diary entries from a low-ranking civil servant who gradually descends into insanity. As he becomes increasingly alienated from society, he develops delusions of grandeur and believes himself to be of noble descent. His madness escalates as he convinces himself that he can understand the conversations of dogs and that he is destined to become the king of Spain. The narrative provides a poignant critique of the bureaucratic world and the protagonist's struggle with his identity and self-importance, reflecting the absurdities and injustices of the society in which he lives.

The 3641st greatest book of all time