- Levantando el vuelo
- Level Nine
- Level Six
- Level Up Bitch
- Leveled Texts for Classic Fiction: Fantasy and Science Fiction
- Levels
- Leverage
- Leviathan
- Leviathan erwacht
- Leviathan fällt
- Leviathans: Armored Skies
- Levir - Rehumanos
- Lex Talionis: The Butcher of Proxima Prime
- Lexicon
- Ley Riders
- La leyenda de Broken
- La leyenda de la pirámide invertida
- La leyenda de los Tarazashi
- Leyla
- Lhar
- Lhora
- Lhorak: In the City of Dhent
- Li secreti mei
- Liam & Kirby: On-Off
- Liam's Promise
- Liar's Game
- Libazar' kaj Tero (Originala romano en Esperanto)
- Liberating Atlantis
- Liberation of Worlds
- Liberation's Mystery
- Liberators of the Dawn
- Liberi
- Liberty
- Liberty & Justice for All
- Liberty: 1784
- Libra
- Library of Alexandria
- Library Terror
- Libre
- Lich
- Licht - Die Trilogie
- Lichtkrieg
- Lichtraum
- Lichtzeit
- Lie to Me
- Liedecker Institute: Meet the Class
- Lies, Inc.
- Lieutenant Bart McSwain
- Lieutenant Colonel
- Life
- Life Across the Cosmos
- Life And Adventures Of Peter Wilkins, Vol. I. (of II.)
- Life and Law
- Life Goes On
- Life Hunter
- Life in the West
- Life of a Dream: An Earth Protection League Novel
- Life of a Miner
- Life On Ampelus
- Life on Nubis
- Life On Terra: The Time-Drifter's Echo
- Life on the Mississippi
- Life On Ventus: The Illusionist's Enigma
- Life Raft: Earth
- Life Sciences for Kids
- Life's Two Live
- Life, Liberty. . . and all the rest
- Life, the Universe and Everything
- Lifeburst
- LIFEL1K3 (LIFELIKE)
- Lifeless
- Lifespanners
- Light
- Light and Shadow: Eight Short Stories
- Light And Tender Blue and Other Stories From the Sixties
- Light Chaser
- Light From Uncommon Stars
- Light Needle
- Light of Kaska
- Light of the World
- Light Raid
- Light Through the Window
- Light Years - Die Gefährten
- Light: First Book in the Senses series
- Lightburst: The Pastoralist
- Lightforce
- Lighthouse Terror
- Lightless
- Lightning
- Lightning Origins [Definitive Edition]
- Lightning Bolt And Blazer
- Lightpaths
- Lightning Bolt And Blazer
- Lightpaths
- Lights in the Night
- Lights of God
- Lightship Chronicles Chapter 1: First Horizon
- Lightship Chronicles Chapter 3: The Fruity Dance
- Lightville
- Lightwave: Circini Search
- Lightwave: Command Decision
- Lightwave: Folding Space Series Books 0.5 through 3.0
- Lightwave: Folding Space Series Books 4.0 through 7.0
- Lightwave: Jericho Colony Rescue
- Lightwave: Longshot
- Lightwave: Lost
- Lightwave: Nexus Station
- Lightweight 10: Graduation
- Lightweight 1: Dreams Smashwords Edition
- Lightweight 4: "Animals"
- Lightweight 6: "Questions"
- Lightweight 7: "Survival"
- Lightweight 8: "Burned"
- Lightweight 9: "Knowledge"
- Like a Calling
- Limb Poker
- Limit
- Lincoln's Dreams
- Lindsey: The Bionic Detective - Jurassic Reboot - Book 8
- Line War
- Lineage
- Lines
- Linesman
- Link
- Lion and the Fire
- Lion in the Wind
- Lion Loose
- Lion Man's Captive
- Lion of the Earth
- Lion on the Water
- Lioness' Dream
- Lions For A Day
- Liquid Cool (The Cyberpunk Detective Series)
- Liquid Metal
- Lira
- Lisa
- Lisa (sv)