Caio Fernando Loureiro de Abreu (September 12, 1948 – February 25, 1996), best known as Caio Fernando Abreu, was one of the most influential and original Brazilian writers of the 1970s and 1980s. Caio F., as he habitually signed his letters, was born in Santiago do Boqueirão in the state of Rio Grande do Sul in 1948, and died in Porto Alegre in 1996.