He focused mainly on psychological novels, portraying the despair and suffering of people under German occupation of Czechoslovakia.
[1] He studied the Gymnasium in Truhlářšká ulice, where he also first witnessed Nazi persecution of his Jewish friends.
Later he studied philosophy, psychology and art history at the Philosophical faculty of Charles University in Prague, where, in 1949, he received a doctorate.
[1][2] During the communist period, Fuks said he "preferred to choose conciliatoriness and toleration over reckless defiance and courage to fall in the resistance" (raději volil smířlivost a toleranci před bezhlavým vzdorem a odvahou padnout v odporu).
Some of his work from the 1970s is strongly linked to the era in which it was created; for example, Návrat z žitného pole (The Return from the Rye Field) is a novel targeted against emigration after the 1948 communist coup.