Karel Václav Klíč (sometimes written Karl Klietsch, 30 May 1841, Hostinné – 16 November 1926, Vienna) was a Czech painter, photographer, early comics artist,[1] caricaturist, lithographer and illustrator.
Klíč had such artistic talent that he was admitted into the Art Academy in Prague at the age of 14.
Klíč worked as a photographer, caricaturist and illustrator in Brno, Budapest and Vienna, all the time trying to improve the technology of picture reproduction.
During a long night in 1877, while working with zinc relief etching, he discovered, by chance, a process leading to photogravure.
[1] He further improved the process in 1890, when working in England.