- The Red AxeAuthor: S. R. (Samuel Rutherford) CrockettReleased on Project Gutenberg: April 1, 2004
- The Red Badge of Courage: An Episode of the American Civil WarAuthor: Stephen CraneReleased on Project Gutenberg: July 1, 1993
- The Red Badge of Courage: An Episode of the American Civil WarAuthor: Stephen CraneReleased on Project Gutenberg: March 1, 1996
- The Red Book of HeroesAuthor: Lang, Mrs., Andrew Lang, Arthur Wallis MillsReleased on Project Gutenberg: August 19, 2006
- The Red ConspiracyAuthor: Mereto, Joseph J.Released on Project Gutenberg: August 31, 2006
- The Red Cross GirlAuthor: Richard Harding Davis, Gouverneur MorrisReleased on Project Gutenberg: May 1, 1999
- The Red Cross Girls with the Russian ArmyAuthor: Margaret VandercookReleased on Project Gutenberg: July 18, 2007
- The Red EricAuthor: R. M. (Robert Michael) BallantyneReleased on Project Gutenberg: June 7, 2007
- The Red Fairy BookAuthor: Andrew LangReleased on Project Gutenberg: May 1, 1996
- The Red Flower: Poems Written in War TimeAuthor: Henry Van DykeReleased on Project Gutenberg: November 1, 2005
- The Red HorizonAuthor: MacGill, PatrickReleased on Project Gutenberg: November 4, 2006
- The Red House MysteryAuthor: A. A. (Alan Alexander) MilneReleased on Project Gutenberg: August 1, 1999
- The Red InnAuthor: Honoré de Balzac, Katharine Prescott WormeleyReleased on Project Gutenberg: July 13, 2005
- The Red Lily — CompleteAuthor: Anatole FranceReleased on Project Gutenberg: October 30, 2004
- The Red Lily — Volume 01Author: Anatole FranceReleased on Project Gutenberg: April 1, 2003
- The Red Lily — Volume 02Author: Anatole FranceReleased on Project Gutenberg: April 1, 2003
- The Red Lily — Volume 03Author: Anatole FranceReleased on Project Gutenberg: April 1, 2003
- The Red Man's Continent: A Chronicle of Aboriginal AmericaAuthor: Ellsworth Huntington, Allen JohnsonReleased on Project Gutenberg: February 1, 2002
- The Red Man's Revenge: A Tale of The Red River FloodAuthor: R. M. (Robert Michael) BallantyneReleased on Project Gutenberg: June 6, 2007
- The Red OneAuthor: Jack LondonReleased on Project Gutenberg: January 1, 1997
- The Red PlanetAuthor: William John LockeReleased on Project Gutenberg: July 1, 2003
- The Red Record: Tabulated Statistics and Alleged Causes of Lynching in the United StatesAuthor: Ida B. Wells-BarnettReleased on Project Gutenberg: February 8, 2005
- The Red RedmaynesAuthor: Eden PhillpottsReleased on Project Gutenberg: November 26, 2004
- The Red Romance BookAuthor: Andrew Lang, H. J. (Henry Justice) FordReleased on Project Gutenberg: February 15, 2008
- The Red RoomAuthor: H. G. (Herbert George) WellsReleased on Project Gutenberg: October 27, 2007
- The Red Rover: A TaleAuthor: James Fenimore CooperReleased on Project Gutenberg: March 1, 2004
- The Red SealAuthor: Natalie Sumner LincolnReleased on Project Gutenberg: May 1, 1999
- The Red Thumb MarkAuthor: R. Austin (Richard Austin) FreemanReleased on Project Gutenberg: February 1, 2004
- The Red-Blooded Heroes of the FrontierAuthor: Edgar Beecher BronsonReleased on Project Gutenberg: August 17, 2007
- The Redemption of David CorsonAuthor: Charles Frederic GossReleased on Project Gutenberg: January 19, 2005
- The Redheaded Outfield, and Other Baseball StoriesAuthor: Zane GreyReleased on Project Gutenberg: January 1, 1996
- The ReefAuthor: Edith WhartonReleased on Project Gutenberg: June 1, 1995
- The reflections of AmbrosineAuthor: Elinor GlynReleased on Project Gutenberg: March 1, 2004
- The Reformed Librarie-Keeper (1650)Author: John DuryReleased on Project Gutenberg: February 28, 2005
- The Refugees: A Tale of Two ContinentsAuthor: Arthur Conan DoyleReleased on Project Gutenberg: March 1, 2004
- The RegentAuthor: Arnold BennettReleased on Project Gutenberg: June 1, 2004
- The RegisterAuthor: William Dean HowellsReleased on Project Gutenberg: September 1, 2002
- The Register of RatlinghopeAuthor: W. G. D. (William George Dimock) FletcherReleased on Project Gutenberg: March 28, 2007
- The Reign of Andrew Jackson: A Chronicle of the Frontier in PoliticsAuthor: Frederic Austin Ogg, Allen JohnsonReleased on Project Gutenberg: July 23, 2004
- The Reign of GreedAuthor: José Rizal, Charles E. (Charles Edward) DerbyshireReleased on Project Gutenberg: January 1, 2004
- The Reign of Henry the Eighth, Volume 1 (of 3)Author: James Anthony Froude, W. Llewelyn (William Llewelyn) WilliamsReleased on Project Gutenberg: April 4, 2005
- The Reign of Law; a tale of the Kentucky hemp fieldsAuthor: James Lane AllenReleased on Project Gutenberg: February 1, 2003
- The reign of Mary TudorAuthor: James Anthony Froude, Ernest RhysReleased on Project Gutenberg: September 9, 2007
- The Reign of Tiberius, Out of the First Six Annals of Tacitus;: With His Account of Germany, and Life of AgricolaAuthor: Tacitus, Cornelius, 56-, Arthur Galton, Gordon, Thomas, -Released on Project Gutenberg: April 1, 2005
- The Rejuvenation of Aunt MaryAuthor: Anne WarnerReleased on Project Gutenberg: May 6, 2005
- The Relation of Literature to LifeAuthor: Charles Dudley WarnerReleased on Project Gutenberg: December 5, 2004
- The Relation of the Hrólfs Saga Kraka and the Bjarkarímur to Beowulf: A Contribution To The History Of Saga Development In England And The: Scandinavian CountriesAuthor: Oscar Ludvig OlsonReleased on Project Gutenberg: February 2, 2005
- The Relations Between Religion and Science: Eight Lectures Preached Before the University of Oxford in the Year 1884Author: Frederick TempleReleased on Project Gutenberg: November 30, 2005
- The Relics of General Chasse: A Tale of AntwerpAuthor: Anthony TrollopeReleased on Project Gutenberg: February 1, 2003
- The Relief of Mafeking: How it Was Accomplished by Mahon's Flying Column; with an Account of Some Earlier Episodes in the Boer War of 1899-1900Author: Filson YoungReleased on Project Gutenberg: December 16, 2007
- The Religion of Ancient RomeAuthor: Cyril BaileyReleased on Project Gutenberg: June 12, 2006
- The Religion of Babylonia and AssyriaAuthor: Theophilus G. (Theophilus Goldridge) PinchesReleased on Project Gutenberg: February 1, 2000
- The Religion of Babylonia and AssyriaAuthor: Morris JastrowReleased on Project Gutenberg: March 7, 2007
- The Religion of Numa: And Other Essays on the Religion of Ancient RomeAuthor: Jesse Benedict CarterReleased on Project Gutenberg: April 21, 2006
- The Religion of the Ancient CeltsAuthor: J. A. (John Arnott) MacCullochReleased on Project Gutenberg: January 12, 2005
- The Religion of the Samurai: A Study of Zen Philosophy and Discipline in China and JapanAuthor: Nukariya, KaitenReleased on Project Gutenberg: February 1, 2004
- The Religions of India: Handbooks on the History of Religions, Volume 1, Edited by Morris JastrowAuthor: Edward Washburn HopkinsReleased on Project Gutenberg: December 28, 2004
- The Religions of Japan, from the Dawn of History to the Era of MéijiAuthor: William Elliot GriffisReleased on Project Gutenberg: March 31, 2005
- The Religious Experience of the Roman People: From the Earliest Times to the Age of AugustusAuthor: W. Warde (William Warde) FowlerReleased on Project Gutenberg: November 6, 2007
- The Religious Life of the Zuñi ChildAuthor: Matilda Coxe StevensonReleased on Project Gutenberg: October 24, 2005