One of modern Greece's most widely translated poets, Ritsos moved from an early concern with classical themes and style to a more deeply personal lyricism. His writing reflects family tragedies, a stay in a tuberculosis ward, and his political engagement against dictatorship that earned him periods of deportation and house arrest.

He served time in prison camps during 1947-1952 and after the 1967 coup, thence living under house arrest or surveillance. He took moral power from his poems, and spoke of political enemies with compassion rather than bitterness.

Some of his best known works include: