In 1990, Britannica and Mortimer Adler published a second edition of the Great Books of the Western World, adding six volumes of twentieth-century writers — Volumes 56–60 — to extend the conversation past Freud. The additions broke into five themed volumes. Most of these works remain under copyright, which is why this site does not include their texts inline. The entries below name them instead, with free public-domain editions linked where they exist and library-finder pointers where they don't.
Twentieth-Century Science
Volume 56
Henri Poincaré, Science and Hypothesis1902 (Eng. 1905)
The philosophical status of scientific theory — conventionalism, geometry, and the limits of proof.
Max Planck, Scientific Autobiography and Other Papers1949© — in copyright
The founding quantum physicist's reflections on science as a worldview.
Alfred North Whitehead, An Introduction to Mathematics1911
Mathematics as a body of human knowledge, introduced for the general reader.
Albert Einstein, Relativity: The Special and General Theory1916 (Lawson trans. 1920)
Einstein's own popular introduction to relativity — the canonical starting point.
Arthur Eddington, Space, Time and Gravitation1920
Britain's first great popularizer of Einstein; a philosophically literate companion to relativity.
Niels Bohr, Atomic Physics and Human Knowledge1958© — in copyright
Complementarity as a frame for how we think about measurement, knowledge, and mind.
G.H. Hardy, A Mathematician's Apology1940© — in copyright
Pure mathematics as an art. The classic defense of mathematical beauty.
Werner Heisenberg, Physics and Philosophy1958© — in copyright
The architect of the uncertainty principle on what quantum mechanics means for knowledge.
Erwin Schrödinger, What Is Life?1944© — in copyright
The physicist's question that inspired a generation of molecular biologists.
Theodosius Dobzhansky, Genetics and the Origin of Species1937© — in copyright
The synthesis that fused Darwin with Mendelian genetics — the modern evolutionary paradigm.
C.H. Waddington, The Nature of Life1961© — in copyright
The developmental biologist's framework for reading Darwin forward.
Twentieth-Century Economics
Volume 57
Thorstein Veblen, The Theory of the Leisure Class1899
"Conspicuous consumption" enters the language — economics as cultural critique.
R.H. Tawney, Religion and the Rise of Capitalism1926© — in copyright
The other great counterpart to Weber — an English historian's account of capitalism's theological scaffolding.
John Maynard Keynes, The Economic Consequences of the Peace1919
The young Keynes's indictment of Versailles — a moral case for economic thinking.
John Maynard Keynes, The General Theory of Employment, Interest and Money1936© — in copyright
The book that invented macroeconomics — still the most consequential economics text of the twentieth century.
Twentieth-Century Social Thought
Volume 58
James George Frazer, The Golden Bough (abridged ed.)1922
The comparative study of myth and religion that shaped twentieth-century anthropology and literature.
Max Weber, The Protestant Ethic and the Spirit of Capitalism1905 (Parsons trans. 1930)© — in copyright
Weber's classic thesis linking religious discipline to modern economic life.
Johan Huizinga, The Autumn of the Middle Ages1919 (Eng. 1924)© — in copyright
A history of medieval mind as mood — one of the great works of cultural history.
Claude Lévi-Strauss, Structural Anthropology1958© — in copyright
The project of finding the grammar of culture — myth, kinship, and mind as structure.
Modernist Literature I
Volume 59
Henry James, The Beast in the Jungle1903
A novella of waiting — consciousness as its own subject.
George Bernard Shaw, Pygmalion1913
Class, language, and selfhood — the most-produced English comedy of the twentieth century.
Joseph Conrad, Heart of Darkness1899
Empire, self, and the moral abyss — the book behind every later colonial reckoning.
Anton Chekhov, Uncle Vanya1898 (Fell trans.)
The drama of wasted lives and quiet longing — the Chekhov that other dramatists keep rewriting.
Luigi Pirandello, Six Characters in Search of an Author1921© — trans. in copyright
Theater about theater — where identity, authorship, and reality come apart.
Marcel Proust, Swann's Way (vol. 1 of In Search of Lost Time)1913 (Moncrieff trans. 1922)
The novel that taught the twentieth century how to think about memory.
Willa Cather, My Ántonia1918
The American prairie as memory and belonging; prose of uncommon clarity.
Thomas Mann, Death in Venice1912 (Lowe-Porter trans. 1930)© — trans. in copyright
Beauty, repression, and the artist's disorder. Mann's most compact masterpiece.
James Joyce, A Portrait of the Artist as a Young Man1916
The novel of vocation — how a modern artist forges his own conscience.
Modernist Literature II
Volume 60
Virginia Woolf, To the Lighthouse1927
Consciousness, family, and the passage of time rendered moment by moment. Public domain in the U.S. since 2023.
Franz Kafka, The Metamorphosis1915 (Wyllie trans.)
Alienation as transformation — the most-read short story of the twentieth century.
D.H. Lawrence, Sons and Lovers1913
Class, family, and eros in a northern English mining town — the breakthrough English novel of its decade.
T.S. Eliot, The Waste Land1922
The poem that remade modernism in English. Public domain in the U.S. since 2018.
Eugene O'Neill, The Emperor Jones1920
Fate, fear, and colonial memory staged as a single descent.
F. Scott Fitzgerald, The Great Gatsby1925
The American dream diagnosed and mourned in one short novel. Public domain in the U.S. since 2021.
William Faulkner, The Sound and the Fury1929© — in copyright
A southern family's dissolution rendered in four competing minds. Modernism at its most demanding.
Bertolt Brecht, Mother Courage and Her Children1941© — in copyright
Brecht's anti-war play — and the definitive statement of his epic-theater method.
Ernest Hemingway, A Farewell to Arms1929© — in copyright
Love and war in the prose style that changed American fiction.
George Orwell, Nineteen Eighty-Four1949© — in copyright
The totalitarian imagination — language, surveillance, and truth as state property.
Samuel Beckett, Waiting for Godot1953© — in copyright
The hinge play of postwar theater — drama as waiting as life.