| Underground Treasures: How and Where to Find Them / A Key for the Ready Determination of All the Useful Minerals Within the United States
James Orton | |
| Underground: Hacking, madness and obsession on the electronic frontier
Suelette Dreyfus | |
| Underneath the Bough: A Book of Verses
George Allan England | |
| Understanding the Scriptures
Francis John McConnell | |
| Understood Betsy
Dorothy Canfield Fisher | |
| Undertones
Madison Julius Cawein | |
| Undertow
Kathleen Thompson Norris | |
| Underwoods
Robert Louis Stevenson | |
| Undine
Freiherr de Friedrich Heinrich Karl La Motte-Fouqué | |
| Une Vie, a Piece of String and Other Stories
Guy de Maupassant |
