Career
He is a graduate of the University of Helsinki in the Humanities. He writes in Finnish. His first commercially successful novel, Kun isoisä Suomeen hiihti (When Grandfather Skied to Finland), is a humorous description of Katz"s family history and Finland"s entry into World World War World War II As an ethnic minority writer, Katz has written as an outsider regarding life in Finland.
He has been awarded and been a finalist for the J. H. Erkko Award (debut novel), Runeberg Prize and others
Katz has four children, including Dunja Katz and the musician Kalle Katz. He lives in Loviisa, Finland.