- Warlords of Antares (First Contact)
- Warlords of Cunaxa (Star Legions: The Ten Thousand Book 3)
- Warlords of Llantatis
- Warlords of Mars
- Warm Bodies (The Warm Bodies Series)
- Warm Springs
- Warning dead
- Warning from the Stars
- Warning! Malfunctions May Occur
- Warning: Dangerous Dreams
- WARNING: May Cause Annihilation
- Warning: Something Else Is Happening
- Warp
- Warp Angel
- Warpact!
- Warpaint
- Warpworld
- Warpworld: Final Storm
- Warpworld: Ghost World
- Warpworld: Place of Others
- Warpworld: Wasteland Renegades
- Warquest
- Warring States
- Warrior
- Warrior Errant
- Warrior In Hiding
- Warrior Lover Box Set 1
- Warrior Lover Box Set 2
- Warrior Lover Box Set 4
- Warrior One
- Warrior One: Fleet Action I
- Warrior One: Fleet Action II
- Warrior One: Fleet Action III
- Warrior One: Fleet Action IV
- Warrior One: Fleet Action V
- Warrior One: Scout Ships
- Warrior Race
- Warrior's Blood
- Warrior's Curse
- Warrior's Glass
- Warrior's Realm
- Warrior's Scar
- Warrior's Valor
- Warrior's Wrath
- Warrior: Integration
- Warriors
- Warriors and Spies
- Warriors From The Ashes
- Warriors Made of Glass
- Warriors of Isis
- Warriors of St. Antoni
- Warriors of Taulon Prequel
- Warspite
- WarTorn: I,Marine
- WarTorn: On Wings of Reapers
- Washington's Time Traveler Revisited
- Wasteland
- Wasteland Survival Guide
- Wasteland Treasure
- Watch It Burn
- Watch on the Rhine
- Watch Out for a Small Man
- Watch the Sky
- Watch Them Wander
- Watchbearers Quartet
- Watchdog
- Watcher's Web
- Watchers
- Watchers of the Dawn (A Steampunk Adventure)
- Watching Doctor Who
- Water
- Water and Power
- Water Saga
- Water Witch The Deepening Book 2
- Water: A History
- Waterdown
- Watery Graves
- Watson and Holmes
- Wavefall
- Waves (Episode Two of Farther Than We Dreamed)
- Waves of Probability
- Waxing War
- Way of the Sword
- Wayfarer
- Waylines: Issue 4
- Waylines: Issue 5
- Waypoint Five
- Wayward
- Wayward Guardian
- Wayward Saint: Mission 1
- Wayward State
- Wbrew wskazówkom zegara
- We
- We
- We Are Mayhem
- We Are Not Alone
- We Are the Dead
- We Are The Martians
- We Bleed The Same
- We Can Go Back
- We Care For You
- We Dare
- We Few
- We Fight Together
- We Have Arrived
- We Have Met the Enemy
- We Have Visitors
- We Lead
- We Sail Off To War
- WE Shall Be As GODS: 1st Testament - Vestigial Dream
- WE Shall Be As GODS: 2nd Testament - The Weaver and the Herder
- We Shall Rise
- We Shall Sing a Song into the Deep
- We The Bus People: An Intergalactic Gay Romance
- We The Peoples
- We Were Promised Starships
- We Who Are About to...
- We Who Survived
- We Will Destroy Your Planet
- We Will Make Mischief Together