- Losers in Space
- Losing Arthur
- Losing Mars
- Losing Normal
- Loss of Nerve
- Lost Angel: A Wasteland Chronicles Prequel
- Lost Boy, Found Boy
- Lost Gods (Summoners Book Two)
- Lost in a Dream
- Lost in Cyberspace
- Lost in Space
- Lost in the Jungle
- Lost in Time
- Lost Roads
- Lost Storm Rider
- Lost Time
- Lost Vegas Series
- Lost: A N’arth Chronicle
- Lost: A N’arth Chronicle
- Lou, après tout : La bataille de la Douceur
- Lou, après tout : Le Grand Effondrement
- Lou, après tout, tome 2 : La Communauté
- Love and Devastation
- Love at the End of the World
- Love in the Time of Global Warming
- Love Sucks and Then You Die
- Love/Hate
- Loveless Ada: The Luggage Disaster
- Lucas und der Zaubertrank
- Lucas Warbuck, The Prophet's Call, Book 1
- La Luce Del Cielo
- Luce nel Buio
- Luces blancas
- La Luciole
- Lucy
- Lucy and the Rocket Dog
- Lucy Wolvérène 1 - Les cristaux d’Orléans
- Lukas und das Geheimnis des Geisterwaldes
- Lukas und der Notruf vom Jupiter
- Lukas und die Gefahr von der Venus
- Luminary
- Luminescence (The Rayne Trilogy #1)
- Luminosity, the Hitchhiking Imp
- Lunch Swap Disaster
- Lunchbox and the Aliens
- La lunga notte di Charlie Noon
- Lux: Opposition
- Luzonair
- Lázadók
- Léonie
- L’anima di un vescovo
- L’Horloger: nouvelle (Édition française)