1. Unamuno, Miguel de, 1864-1936 - Tragic Sense Of Life
2. Underhill, Evelyn, 1875-1941 - The Life of the Spirit and the Life of To-day
3. Underwood, Clarence F. [Illustrator]
   • Barnaby Rudge: a tale of the Riots of 'eighty
   • Beatrix of Clare
   • Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries
   • Editorials from the Hearst Newspapers
   • Green Mansions: a romance of the tropical forest
   • Just Folks
   • Poems and Songs of Robert Burns
   • Pollyanna
   • The Secret Guide to Computers
4. United States. Presidents.
   • State of the Union Address (1790-2001)
   • United States Presidents' Inaugural Speeches
5. Unknown
   • 365 Foreign Dishes
   • A List of Factorial Math Constants
   • Ancient Poems, Ballads, and Songs of the Peasantry of England
   • as it was played by the King's Majesties servants.
   • — An Anonymous Autobiography
   • Best Short Stories
   • Book of James
   • Book of Jude
   • Book of Judith
   • Bubbles of the Foam
   • Co.'s General Catalogue of Works in the Departments of History, Biography, Travels, and Belles Lettres, December, 1869
   • Codex Junius 11
   • Come Lasses and Lads
   • Dhammapada, a collection of verses; being one of the canonical books of the Buddhists
   • Ecclesiastes
   • False Friends, and The Sailor's Resolve
   • Gems of Poetry, for Girls and Boys
   • Happy and Gay Marching Away
   • Happy Little Edward And His Pleasant Ride and Rambles in the Country.
   • Jesus Says So
   • Little Sarah
   • Pages for Laughing Eyes
   • Se-quo-yah; from Harper's New Monthly, V.41
   • The Anglo-Saxon Chronicle
   • The Apricot Tree
   • The Arctic Queen
   • The Book Of Quinte Essence Or The Fifth Being (1889) Edited from British Museum MS. Sloane 73 about 1460-70 A.D.
   • The Circus Procession
   • The Dock and the Scaffold
   • The Fall of the Niebelungs
   • The History of Insects
   • The Illustrated Alphabet of Birds
   • The Ladies' Work-Book Containing Instructions In Knitting, Crochet, Point-Lace, etc.
   • The Lady's Album of Fancy Work for 1850
   • The New McGuffey First Reader
   • The Second Story of Meno; a continuation of Socrates' dialogue with Meno in which the boy proves root 2 is irrational
   • Through Palestine with the 20th Machine Gun Squadron
   • Twenty-Two Goblins
   • Whig Against Tory The Military Adventures of a Shoemaker, a Tale of the Revolution
6. Upton, Bertha - The Adventure of Two Dutch Dolls and a 'Golliwogg'
7. Upton, Florence K. [Illustrator]
   • A Little Princess; being the whole story of Sara Crewe now told for the first time
   • Middlemarch
   • The Adventure of Two Dutch Dolls and a 'Golliwogg'
   • The Autobiography of Benjamin Franklin