The 100 best moderately difficult books from the United States

No. 11 on this list. The Structure of Scientific Revolutions · Thomas S. Kuhn · 1962

Standard reading across philosophy and history of science, sociology and science and technology studies, and one of the most assigned academic books of the twentieth century. The phrase 'paradigm shift' entered everyday language from it.

No. 12 on this list. Self-Portrait in a Convex Mirror · John Ashbery · 1975

Won the Pulitzer Prize, National Book Award, and National Book Critics Circle Award — the only book to win all three. Central to the American poetry canon.

No. 13 on this list. Slaughterhouse-Five · Kurt Vonnegut · 1969

Vonnegut unstuck his protagonist from time and used the resulting shattered chronology to convey what no linear war novel could: the way trauma scrambles cause and effect until the firebombing of Dresden and a zoo on an alien planet occupy the same plane of reality. The deadpan sentence "So it goes" after every death became the definitive literary response to mass killing.

No. 14 on this list. Long Day's Journey into Night · Eugene O'Neill · 1956

O'Neill dramatized his own family — the morphine-addicted mother, the alcoholic father, the doomed brother — with such lacerating honesty that he ordered the play sealed until twenty-five years after his death. The result is the most autobiographically raw masterpiece in American theater, a four-act cycle of blame and forgiveness that never grants its characters the relief of a resolution.

No. 15 on this list. The Complete Stories · Flannery O'Connor · 1972

O'Connor occupies the highest tier of 20th-century American short fiction, regularly anthologized alongside Hemingway, Faulkner, and Chekhov. 'A Good Man Is Hard to Find' appears in virtually every American literature survey. The Complete Stories (1971) won the National Book Award posthumously, cementing her stature. Her work defines Southern Gothic and theological fiction, studied in literature programs worldwide as essential American modernism.

No. 16 on this list. On the Road · Jack Kerouac · 1957

Kerouac typed the ecstatic cross-country journeys of his circle into a single scroll of spontaneous prose that turned restlessness itself into a literary style and a generational identity. The novel did not just describe the Beat movement — it created its mythology, and the image of the open American highway as spiritual practice originates here.

No. 17 on this list. The Poetry of Robert Frost · Robert Frost · 1979

'The Road Not Taken' and 'Stopping by Woods on a Snowy Evening' are taught at every level of American schooling, and Frost appears in nearly every American poetry anthology and survey course. He is a core figure of the twentieth-century American canon.

No. 18 on this list. The Glass Menagerie · Tennessee Williams · 1944

Taught in schools: Common Core text exemplars (Appendix B) (US), CSEC English B – Caribbean Examinations Council

The Glass Menagerie is taught in virtually every American high school and in university courses on 20th-century drama, American literature, and modern theater across the globe. It appears on thousands of syllabi and is considered alongside Death of a Salesman as a cornerstone of the American stage canon. No data signals were returned, but its syllabus presence is among the highest for any American play.

No. 19 on this list. Essays: First and Second Series · Ralph Waldo Emerson · 1844

"Self-Reliance" is among the most frequently anthologized essays in American literature, a fixture of high school and university American literature and philosophy syllabi. Emerson's essays sit alongside Thoreau's Walden and Whitman's Leaves of Grass as the founding texts of the American canon.

No. 20 on this list. The Adventures of Augie March · Saul Bellow · 1954

Taught in schools: Common Core text exemplars (Appendix B) (US)

Bellow opened the floodgates of American prose with a first sentence — "I am an American, Chicago born" — that declared the immigrant son's right to the whole language, high and low, lyrical and street-smart, in a single breath. The novel proved that the American picaresque could carry philosophical weight without sacrificing velocity, and it liberated a generation of novelists from Hemingway's tight-lipped restraint.

No. 21 on this list. The Lottery · Shirley Jackson · 1948

Ranked by literary regard among eligible works in the current catalogue. This position reflects the available catalogue evidence.

No. 22 on this list. Walden · Henry David Thoreau · 1854

Thoreau moved to a cabin on a pond for two years and wrote a book that made solitude, bean-counting, and the observation of thawing mud into acts of radical philosophy. Walden supplied the intellectual template for civil disobedience, environmentalism, and voluntary simplicity — three movements that still run on its sentences.

No. 23 on this list. Bartleby, the Scrivener · Herman Melville · 1853

One of the most taught and analyzed short stories in American literature, a foundational text of literary modernism.

No. 24 on this list. Lilith's Brood · Octavia E. Butler · 1989

Widely taught in university courses on science fiction and postcolonial literature. A central text of Afrofuturism.

No. 25 on this list. House Made of Dawn · N. Scott Momaday · 1969

House Made of Dawn appears on virtually every Native American literature syllabus and most American literature surveys covering the post-1960 period. It is the foundational text of the Native American literary renaissance and required reading in courses on multicultural American literature, modernism, and postwar fiction.

No. 26 on this list. The Raven · Edgar Allan Poe · 1845

Taught in schools: Common Core text exemplars (Appendix B) (US)

It is among the most anthologized American poems and a staple of school and college literature courses. It is widely taught alongside Poe's tales.

No. 27 on this list. Collected Stories · William Faulkner · 1951

Collected Stories won the National Book Award in 1951 and remains central to American short fiction canon. These stories appear regularly in anthologies and academic syllabi. While perhaps overshadowed by Faulkner's novels, the collection represents an essential component of his Yoknapatawpha saga and demonstrates his mastery across forms.

No. 28 on this list. A Farewell to Arms · Ernest Hemingway · 1929

Taught in schools: AQA GCSE and A-level English Literature (UK), Common Core text exemplars (Appendix B) (US), CSEC English B – Caribbean Examinations Council

Included in: UNESCO Collection of Representative Works

A Farewell to Arms secured canonical status immediately upon publication in 1929, establishing itself as a foundational modernist war narrative and remains a standard text in American literature curricula. Its influence on subsequent war fiction and its representation of the Lost Generation make it exemplary of early 20th-century literary achievement.

No. 29 on this list. The Grapes of Wrath · John Steinbeck · 1939

Taught in schools: Common Core text exemplars (Appendix B) (US), OCR GCSE and A-level English Literature (UK), Pacific Senior Secondary Certificate – English

Appears on 727 university syllabi (Open Syllabus Project, 71.5th percentile) and has Wikipedia articles in 58 languages. Listed on the Modern Library 100 Best Novels, TIME's All-TIME 100 Novels, Le Monde's 100 Books of the Century, and the BBC Big Read Top 100, establishing it as a fixture of American literary curricula.

No. 30 on this list. In Our Time · Ernest Hemingway · 1925

In Our Time is widely taught in American literature survey courses as the foundational text of Hemingway's iceberg style. It appears on thousands of university syllabi and is the required starting point for understanding modernist short fiction in America. The Modern Library and most major American literature curricula treat it as essential.