Zbigniew ( Zbychu ) Leon Kaja (1924 - 1983) Graduated from Poznan ASP, 1951. A painter, a graphic designer, a stage designer, and a costume designer. The creator of over 300 posters, was one of the creators of the "Polish school of poster-making". Prints, Posters, commercial art, stage designer, book illustrations, display design .

Individual shows : Poznan 1951, 53, 56, 58, 59, 64, 76, 78, 81; and after death 1985 ; Prague - 1957; Dessau - 1958; Kalisz - 1964, 1975; Rzeszow - 1965;Leipzig - 1961; Sydney - 1970; Dessau -1959; Warszawa-1965 ; and many others Participated in many exhibits abroad, both group and individual : Germany , Korea , Australia , China , USSR, France , Hungary, Norway and others.

City of Poznan Award for engravings and Third prize at National Exhibition of Illustration , Posters and Small Forms, 1955; Commendations at Poster Exhibition and at the Prints and Drawings Exhibition of the cycle "Polish Arts on the 15th Anniversary of the Polish People's Republic ", 1961; "Warsaw Poster of the Year " award , 1962 ; many prizes and diplomas at prints and poster competition Knight's Cross of the Order of Polonia Restituta for services to art.