Silver Biker
L.B. Dunbar
The Silver Foxes of Blue Ridge (4)
Counterfeit Hope
Crystal Caudill
Hidden Hearts of the Gilded Age (2)
An Ambush of Widows
Jeff Abbott
Blood Lines
Eileen Wilks
World of the Lupi (3)
Saved by the Superhero
Alexa Riley
Snow Flower and the Secret Fan
Lisa See
Storm and Fury
Jennifer L. Armentrout
The Harbinger (1)
October Skies
Alex Scarrow
The Last Legends of Earth
A.A. Attanasio
Radix (4)
The Last Watch
J.S. Dewes
The Divide (1)
The Law of Becoming
Kate Elliott
Jaran (4)
Layers of Force
Lindsay Buroker
Star Kingdom (8)
Legion of the Damned
William C. Dietz
Legion (1)
Lethal Heritage
Michael A. Stackpole
Blood of Kerensky (1)
Leviathans of Jupiter
Ben Bova
The Grand Tour (14)
Leviatã desperta
James S.A. Corey
A Liaden Universe Constellation: Volume 5
Sharon Lee
Adventures in the Liaden Universe (1)
Lieutenant Henry Gallant
H. Peter Alesso
The Henry Gallant Saga (2)
Light
M. John Harrison
Kefahuchi Tract (1)
Light Bringer
Pierce Brown
Red Rising Saga (6)
A Light in the Dark
Nathan Lowell
Light of Impossible Stars
Gareth L. Powell
The Line Of Polity
Neal Asher
Agent Cormac (2)
Lines of Departure
Marko Kloos
Frontlines (2)
Little Fuzzy
H. Beam Piper
Live Free or Die, Second Edition
John Ringo
Troy Rising (1)
Lockdown Tales
Polity Universe (chronological) (1)
Lockstep
Karl Schroeder
The Long Way to a Small, Angry Planet
Becky Chambers
Lords of Mars
Graham McNeill
Warhammer 40,000 (1)
The Lost Artifact
Vaughn Heppner
Lost Starship (8)
The Lost Colony
Lost Starship (4)
The Lost Command
Lost Starship (2)
Lost Destiny
Blood of Kerensky (3)
Lost Dorsai
Gordon R. Dickson
Childe Cycle (6)
The Lost Earth
Lost Starship (7)
The Lost Intelligence
Lost Starship (12)
The Lost Star Gate
Lost Starship (9)
The Lost Starship
Lost Starship (1)
Lt. Leary, Commanding
David Drake
RCN (2)
Luna: Moon Rising
Ian McDonald
Luna (3)
Luna: New Moon
Luna (1)
Machine
Elizabeth Bear
White Space (2)
Magnus the Red: Master of Prospero
The Horus Heresy (1)
The Magos
Dan Abnett
Eisenhorn (4)
Malleus
Eisenhorn (2)
The Man Who Used the Universe
Alan Dean Foster
The Man with a Thousand Names
A.E. van Vogt
The Margarets
Sheri S. Tepper
Mars
The Grand Tour (4)
Martyr: A Novel
Peter David
Star Trek: New Frontier (5)
Marune: Alastor 933
Jack Vance
Alastor (2)
Match Game
Craig Alanson
Expeditionary Force (14)
Matriarch
Karen Traviss
The Wess'har Wars (4)
Mavericks
Expeditionary Force (6)
Measures of Absolution
Frontlines (2.20)
Mechanicum
The Horus Heresy (9)
The Medusa Chronicles
Stephen Baxter
Memory's Blade
Spencer Ellsworth
Starfire (3)
Mentats of Dune
Brian Herbert
Schools of Dune (2)
Mercenary
Piers Anthony
Bio of a Space Tyrant (2)
Mercury
The Grand Tour (16)
Mickey7
Edward Ashton
Mickey7 (1)
Mid-Flinx
Pip & Flinx (7)
Mirror Space: Book Three of the Sentients of Orion
Marianne de Pierres
Sentients of Orion (3)
Mission Earth Volume 3: The Enemy Within
L. Ron Hubbard
Mission Earth (3)
Mission of Gravity
Hal Clement
Moonrise
The Grand Tour (5)