"The Young Decadent. After the Ball," Ramon Casas, 1899.
This young lady seems a bit tired, but look closer. She's reading a book with a yellow cover, a sort of code that it's by a Decadent or sinful author. The Yellow Book was a periodical that featured Decadent writing. Yellow became associated with pulpy or extreme writing; in Italy there's a whole genre of slasher films called "giallo" or "yellow" with the same association.
From the Museum of Monserrat, Spain.
