- Unknown Journey Ahead
- Unknown Pleasures
- Unknown to History: a story of the captivity of Mary of Scotland
- Unknown: A Memoir – Guillain-Barré Syndrome
- Unleash Different
- Unleash the Girls
- Unleash Your Supernova
- Unleash Your Voice
- Unless Victory Comes
- Unlike the Heart
- Unlikely Allies
- Unlikely Brothers
- Unlikely Journey
- Unlikely Memories and Two Amnesias
- Unlikely Pilgrim
- Unlikely Radicals
- Unlikely Ways Home
- Unlimited: Conquering On My Knees
- Unlocked
- Unlocking the Ancient Secrets to Healing: Why Science is Looking to the Past for the Future of Medic...
- Unlocking the Dream
- Unloved
- Unmailed Letters from an REMF
- Unmask Alice
- Unmask to Rediscovery
- Unmasked at Last: poetry of a midlife journey to identity and autism acceptance
- Unmasked: A Remarkable True Story of Transformation and Redemption
- Unmasking the Silence - 17 Powerful Slave Narratives in One Edition
- Unmeasured Strength
- Unmitigated Gaul - My Lifetime in Paris
- Unmitigated Gaul: My Lifetime in Paris
- Unmute Yourself, Girlfriend
- Unmöglich
- Unnecessary Roughness
- Uno de los nuestros
- Uno de los suyos
- Uno dei tanti Marò
- Uno E Verso
- Uno Psicoanalista sul Cammino di Santiago
- Uno sbirro al volante
- Uno sguardo verso il mare
- Uno Spirito Puro. Ennio De Giorgi, genio della matematica
- Uno tan diferente como yo
- Uno, due, tre e… quattro
- Unofficial Diplomacy
- Unofficial History
- Unofficial Student Transcripts
- Unorthodox - Näin hylkäsin hasidijuutalaiset juureni
- Unos Amaneceres Oxidados
- Unpacked Memories
- UnPERFECT
- Unpolished Gem
- UnPERFECT
- Unpolished Gem
- Unpredictable Outcome
- Unpredictable: The walk in and out of darkness
- Unqualified
- Unquenchable
- Unraveled Intimacies
- Unraveled, Time to Tell
- Unraveling The Spider's Net
- Unreconciled
- Unrepentant
- Unrequested Blessings
- Unrequited Infatuations
- Unrettbar verloren
- Unsafe at Any Altitude
- Unsat: Letters From A Warrior In Afghanistan
- Unschooled
- Unscrambling Eggs
- Unseen Paths
- Unseen Warfare: A Story of Liberty, Love, Marriage Equality, Legal Marijuana, VA Healthcare, Crimina...
- Unser Freund James Joyce
- Unser König
- Unser Leben. Unsere Welt. Unsere Sprachen.
- Unser Mann in London
- Unser Mann in Timbuktu