Books in Science Fiction (sorted alphabetically by author)
- The Love of Frank Nineteen David C. Knight
- The Altar at Midnight C. M. Kornbluth
- The Adventurer C. M. Kornbluth
- The Luckiest Man in Denv C. M. Kornbluth
- The Marching Morons C. M. Kornbluth
- With These Hands C. M. Kornbluth
- The Syndic C. M. Kornbluth
- The Ego Machine Henry Kuttner
- The Secret of Kralitz Henry Kuttner
- Where the World is Quiet Henry Kuttner
- We Didn't Do Anything Wrong, Hardly Roger Kuykendall
- All Day September Roger Kuykendall
- Aloys R. A. Lafferty
- All the People R. A. Lafferty
- Dream World R. A. Lafferty
- The Weirdest World R. A. Lafferty
- Sodom and Gomorrah, Texas R. A. Lafferty
- Slingshot Irving W. Lande
- Mizora: A Prophecy Mary E. Bradley Lane
- Gourmet Allen Kim Lang
- Blind Man's Lantern Allen Kim Lang
- World in a Bottle Allen Kim Lang
- The Great Potlatch Riots Allen Kim Lang
- Join Our Gang? Sterling E. Lanier
- Old Mr. Wiley Greye La Spina