Stuart Berg Flexner is a lexicographer, editor, and author, noted for his books on the origins of American words and expressions, including I Hear America Talking and Listening to America, as co-editor of the Dictionary of American Slang , and as chief editor of the Random House Dictionary, Second Edition.

His books include:

• How to Increase Your Word Power (1971)
• Family Word Finder: A New Thesaurus of Synonyms and Antonyms in Dictionary Form (1975)
• I Hear America Talking: An Illustrated Treasury of American Words and Phrases (1976)
• Promises to Keep (1978)
• States Dickman (1980)
• Listening to America: An Illustrated History of Words and Phrases from our Lively and Splendid Past (1982)

With others:

• Dictionary of American Slang, with Harold Wentworth (editions 1960, 1967, 1975)
• Oxford American Dictionary, with Eugene H. Ehrlich, Gorton Carruth, Joyce M. Hawkins (1980)
• The Random House Thesaurus, with Jess Stein (1984)
• The Pessimist's Guide To History : An Irresistible Compendium Of Catastrophes, Barbarities, Massacres And Mayhem From The Big Bang To The New Millennium, illustrated by Doris Flexner (1992)
• The Random House Dictionary of the English Language, Unabridged, Second Edition, editor (1987)
• Wise Words and Wives’ Tales: The Origins, Meanings and Time-Honored Wisdom of Proverbs and Folk Sayings Olde and New, with Doris Flexner (1993)
• Speaking Freely: A Guided Tour of American English from Plymouth Rock to Silicon Valley, with Anne H. Soukhanov (1997)