The poster designer did not live to see his works appreciated as fine art. Vaca was born on July 21, 1919, in Prostějov, and died on March 31, 1989, in Prague, just a few months before the Velvet Revolution. He studied at the Academy of Arts, Architecture and Design (UMPRUM) in Prague. His work for the Central Film Rental Prague (Ústřední půjčovnou filmů Praha) began in 1958, and he made 287 posters for the state-run company. He also designed theater and exhibition posters.