Children's picture books:
- "Mrs. Piggle-Wiggle" (1947)
- "Mrs. Piggle-Wiggle's Magic" (1949)
- "Mrs. Piggle-Wiggle's Farm" (1953)
- "Mrs. Piggle-Wiggle's Circus" (1957)
- "Mrs. Piggle-Wiggle's Adventures" (1964)
- "Alexander and the Castle" (1958)
- "Chuggy and the Blue Caboose" (1963)
- "Emily Emerson's Moon" (1964)
- "I Know an Old Lady Who Swallowed a Fly" (1967)
- "What Mary Jo Shared" (1965)
- "Dinner at Alberta's" (1974)
- "Miss Flora McFlimsey's Birthday" (1968)
- "Miss Flora McFlimsey's Christmas Eve" (1969)
- "Alexander the Grape" (1971)
- "Bedtime for Frances" (1960, illustrated by Garth Williams)
- "Go, Dog. Go!" (1961, illustrated by P. D. Eastman)
- "Are You My Mother?" (1960, illustrated by P. D. Eastman)
Adult novels:
- "Green Grows the Ivy" (1939)
- "Wind in the Chimney" (1940)
- "Turn in the Road" (1941)
- "Never Go Back" (1943)
- "House at the Crossroads" (1945)
- "Shadow of a Lady" (1946)
Adult Non-Fiction:
- "The Language of Flowers" (1973)