Collider ranks 25 notable 20th-century books, presenting the selection as a subjective overview rather than a definitive canon. The article limits itself largely to fiction and generally chooses one title per author, acknowledging that many acclaimed works are inevitably omitted.

– ‘Catch-22’ (1961) by Joseph Heller is ranked 25th for its darkly comic, satirical treatment of wartime absurdity and serious World War II themes.
– ‘I Who Have Never Known Men’ (1995) is ranked 24th; it follows 40 women imprisoned underground without knowing who holds them or why.