Jaroslav Hašek was a Czech anarchist, writer and satirist who is best known for his novel
The Good Soldier Švejk, a satirical dark comedy set during the World War I. It is considered one of the first anti-war novels and had enormous influence on the genre, including on the famed novel
Catch-22 by
Joseph Heller.
The correct pronunciation of Jaroslav Hašek in Czech is
Yah-roh-slaf Hah-shek.