Ambrose Bierce was one of the most controversial and popular writers of his time, and his mysterious disappearance in Mexico in 1913 contributed to his legend. His greatest merit lies in the fact that he laughed at the life, the people and the institutions of his country as no American author had ever done before.Of the works born from his acid pen, this Dictionary of the Devil stands out, which we present in a revised and completed edition with 851 new words and newly discovered definitions that add to the thousand traditional voices. His insolence, wit and humor are still as relevant today as at the time of his writing.