Francisco de Goya. Loco (Madman). During the last thirty years of his life, he drew some 550 sheets, collected into eight albums, which describe Goya’s vision of humanity with unequalled power of expression. Album G contains 15 studies of mentally ill people. His acutely accurate depictions suggests Goya was deeply interested in mental illness, and also that he must have obtained access to the closed institutions where these people were held, to observe them at first hand.