Francisco GOYA y Lucientes
The sleep of reason produces monsters (1797-1798); 1799 {published}

In the eighty etchings that make up his Caprichos series, Francisco Goya ridiculed human follies, vices and the hypocrisy he observed in Spanish society. The second part of the series, which focuses on witchcraft and superstition, is introduced by this famous print depicting the sleeping writer (probably Goya himself) and the monsters and nocturnal creatures that come alive when reason is inactive.