- Reader and Raelynx
- Reading for Fun
- Reading His Mind
- Reading The Dead: Anna's Adventures
- Ready For You
- Ready Reference Treatise: A Clockwork Orange
- Ready Reference Treatise: A Wrinkle in Time
- Ready Reference Treatise: Eternal Sunshine of the Spotless Mind
- Ready Reference Treatise: Legend
- Ready Reference Treatise: Midnight’s Children
- Ready Reference Treatise: The Devil and Tom Walker
- Ready Reference Treatise: The Princess Bride
- Ready Reference Treatise: The Turn of the Screw
- Ready Reference Treatise: The Young Elites
- Ready Ryders
- Real Dragons Don't Wear Sweaters
- Real Gaia Game
- Real Girl
- Real Gold: A Story of Adventure
- Real Life
- Real Magic
- Real Sex Stories - Erotic XXX Stories For Adults (Volume 3)
- Real Sex Stories - Erotic XXX Stories For Adults (Volume 4)
- Real Sex Stories - Erotic XXX Stories For Adults (Volume 8)
- Real Terrors
- Real Vampires and the Viking
- Real Vampires Say Read My Hips
- Real Vampires: A Highland Christmas
- Reale Kurzgeschichten
- Realities
- Realities: The Return
- Reality
- Reality Bites
- Reality Bites (The Tamar Black Saga #2)
- Reality Challenged
- Reality Enforcer
- Reality Ever After
- Reality Fails
- Reality Gear Union
- Reality Hack
- Reality of Shadow
- Reality or Delusion?
- Reality Ruptured
- Reality Seems Twisted: Book 4 of Danny's Story
- Reality Zero: Book 1-1
- Reality's Ascent
- Reality's Dawn
- Reality's Fire
- Realization
- Realizzare la Leggenda
- Realm 1: To Tell Of Darkness
- Realm Beyond the Mist
- Realm Breaker
- Realm Jumper Chronicles Omnibus Edition Books 1 - 3
- Realm Jumper Chronicles Omnibus Edition, Volume 2: Books 4 - 6
- Realm of Ash
- Realm of Blood and Fire
- Realm of Dragons (Age of the Sorcerers—Book One)
- Realm of Hope
- Realm of Knights
- Realm of Lost Souls: Chronicles of the Supernatural Book Two
- Realm of Magic
- Realm of Night: A Retelling of Bram Stoker's Dracula
- Realm of Revein'sev
- Realm of Shadows
- Realm Of Shadows
- Realm of Shadows Trilogy
- Realm of the Dominatrix Cycle: Boxed Set of 8 Short Stories (The Complete Set)
- Realm of Wraiths
- Realm Stone
- Realm-Lords
- Realm: The Age Between Breath & Fire
- Realms
- Realms 2: The Second Year of Clarkesworld Magazine (Clarkesworld Anthology, #2)
- Realms Divided
- Realms of Darkover
- Realms Of Fantasy
- Realms Of Horror
- Realms of Our Own: Soul Thief
- Realms Of Possibility
- Realms of Shadow
- Realms, the Red Knights. The Story of Riven.
- Realms: The First Year of Clarkesworld Magazine
- Realtetoons
- Reanimated Readz
- Reap the Wind
- Reap What You Sow
- Reaper (#1, Duster and a Gun)
- Reaper Chronicles: The Price
- Reaper Girl
- Reaper of Dreams
- Reaper of Souls
- Reaper's Ascension The Complete Series
- Reaper's Challenge
- Reaper's Deliverance
- Reaper's Eclipse
- Reaper's Gale
- Reaper's Moon
- Reaper's Touch
- Reaper's War
- Reaper: Book One of The Gatekeepers
- Reapers
- Reapers Never Smile
- Reapers, Inc.: Dark Souls
- Reapers, Inc.: Demon's Game
- Reapers, Inc.: Rogue Reaper
- Reapers, Inc.: The Hunter
- REAPERS: Stave 1
- REAPERS: Stave 2
- Reaping Angel
- Reaping Book One: Ephesus
- Reaping Day
- Reaping Mercy
- Reaping: The Start of an Ending
- Rear View
- Reason To Sing
- Reasons
- Reasons of Evil
- Reasons Why the Dead Don't Speak
- Reath