Books about Fantasy fiction (sorted alphabetically)
- Klein Zaches, genannt Zinnober: Ein Märchen (German) E. T. A. Hoffmann
- Knock Three Times! Marion St. John Webb
- Kullan voima : Kertomus (Finnish) Arthur Conan Doyle
- Kuolematon kuningatar (Finnish) H. Rider Haggard
- Land of Oz L. Frank Baum
- Last Generation: A Story of the Future James Elroy Flecker
- last test Adolphe Danziger
- laughter of Toffee Henry Farrell
- Legends for Lionel: in pen and pencil Walter Crane
- Leonie of the Jungle Joan Conquest
- Life and Adventures of Peter Wilkins, Complete (Volumes 1 and 2) Robert Paltock
- Life and Adventures of Peter Wilkins, Volume 1 (of 2) Robert Paltock
- Life and Adventures of Peter Wilkins, Volume 2 (of 2) Robert Paltock
- Liisan seikkailut ihmemaassa (Finnish) Lewis Carroll
- Likely Story William De Morgan
- Lilith: A Romance George MacDonald
- Line of Love; Dizain des Mariages James Branch Cabell
- Little Green Goblin J. B. Naylor
- Little Lame Prince and His Travelling Cloak Dinah Maria Mulock Craik
- Little Miss Dorothy: The Story of the Wonderful Adventures of Two Little People Martha James
- Little Peter: A Christmas Morality for Children of any Age Lucas Malet
- Little Princess in the Wood Helen Dean Fish
- Lolly Willowes : or, the loving huntsman Sylvia Townsend Warner
- Lost City Jos. E. Badger
- Lost Continent Charles John Cutcliffe Wright Hyne