- Robert Burns: How To Know HimAuthor: William Allan NeilsonReleased on Project Gutenberg: May 14, 2006
- Robert ElsmereAuthor: Ward, Humphry, Mrs.Released on Project Gutenberg: August 1, 2005
- Robert ElsmereAuthor: Ward, Humphry, Mrs.Released on Project Gutenberg: March 23, 2008
- Robert F. Murray (Author of the Scarlet Gown): His Poems; with a MemoirAuthor: R. F. (Robert Fuller) Murray, Andrew LangReleased on Project Gutenberg: June 1, 1998
- Robert FalconerAuthor: George MacDonaldReleased on Project Gutenberg: March 1, 2001
- Robert Hardy's Seven Days: A Dream and Its ConsequencesAuthor: Charles M. SheldonReleased on Project Gutenberg: April 4, 2007
- Robert Louis StevensonAuthor: Raleigh, Walter Alexander, SirReleased on Project Gutenberg: September 1, 1995
- Robert Louis StevensonAuthor: E. Blantyre (Evelyn Blantyre) SimpsonReleased on Project Gutenberg: March 1, 2003
- Robert Louis StevensonAuthor: Margaret Moyes BlackReleased on Project Gutenberg: August 10, 2007
- Robert Louis Stevenson, an Elegy; and Other PoemsAuthor: Richard Le GallienneReleased on Project Gutenberg: February 1, 2004
- Robert Louis Stevenson: A Record, an Estimate, and a MemorialAuthor: Alexander H. (Alexander Hay) JappReleased on Project Gutenberg: July 1, 1996
- Robert Moffat, the missionary hero of KurumanAuthor: Deane, David J.Released on Project Gutenberg: March 16, 2005
- Robert Toombs: Statesman, Speaker, Soldier, SageAuthor: Pleasant A. StovallReleased on Project Gutenberg: July 16, 2008
- Robert's Rules of Order: Pocket Manual of Rules of Order for Deliberative AssembliesAuthor: Henry M. (Henry Martyn) RobertReleased on Project Gutenberg: November 13, 2004
- RobinAuthor: Frances Hodgson BurnettReleased on Project Gutenberg: July 30, 2006
- Robin HoodAuthor: J. Walker (Joseph Walker) McSpaddenReleased on Project Gutenberg: January 21, 2006
- Robin Redbreast: A Story for GirlsAuthor: Mrs. Molesworth, Robert BarnesReleased on Project Gutenberg: July 18, 2008
- Robinson Crusoe — in Words of One SyllableAuthor: Defoe, Daniel, Lucy AikinReleased on Project Gutenberg: November 1, 2004
- Robur the ConquerorAuthor: Jules VerneReleased on Project Gutenberg: March 1, 2003
- Rock A Bye Library: A Book of Fables: Amusement for Good Little ChildrenAuthor: UnknownReleased on Project Gutenberg: September 8, 2007
- Rod of the Lone PatrolAuthor: H. A. (Hiram Alfred) CodyReleased on Project Gutenberg: December 5, 2005
- Roden's CornerAuthor: Henry Seton MerrimanReleased on Project Gutenberg: November 1, 2005
- Roderick HudsonAuthor: Henry JamesReleased on Project Gutenberg: March 12, 2006
- Rodman the Boatsteerer, and Other Stories: 1898Author: Louis BeckeReleased on Project Gutenberg: March 15, 2008
- Rodney StoneAuthor: Arthur Conan DoyleReleased on Project Gutenberg: February 1, 2004
- Roger Ingleton, MinorAuthor: Talbot Baines ReedReleased on Project Gutenberg: April 12, 2007
- Roger TrewinionAuthor: Joseph Hocking, Gunning KingReleased on Project Gutenberg: April 2, 2008
- Roger Willoughby: A Story of the Times of BenbowAuthor: William Henry Giles Kingston, Archibald WebbReleased on Project Gutenberg: May 15, 2007
- Rogers-isms, the Cowboy Philosopher on the Peace ConferenceAuthor: Will RogersReleased on Project Gutenberg: February 11, 2007
- Roget's ThesaurusAuthor: Peter Mark RogetReleased on Project Gutenberg: December 1, 1991
- Roget's Thesaurus of English Words and PhrasesAuthor: Peter Mark RogetReleased on Project Gutenberg: April 1, 2004
- Roister Doister: Written, probably also represented, before 1553. Carefully edited from the unique copy, now at Eton CollegeAuthor: Nicholas Udall, Edward ArberReleased on Project Gutenberg: May 7, 2007
- Rolf in the WoodsAuthor: Ernest Thompson SetonReleased on Project Gutenberg: October 1, 1997
- Rolling StonesAuthor: O. HenryReleased on Project Gutenberg: March 1, 2003
- Rollo at Play; Or, Safe AmusementsAuthor: Jacob AbbottReleased on Project Gutenberg: February 1, 2004
- Rollo at WorkAuthor: Jacob AbbottReleased on Project Gutenberg: May 1, 2008
- Rollo in GenevaAuthor: Jacob AbbottReleased on Project Gutenberg: May 6, 2008
- Rollo in HollandAuthor: Jacob AbbottReleased on Project Gutenberg: October 12, 2007
- Rollo in LondonAuthor: Jacob AbbottReleased on Project Gutenberg: January 6, 2008
- Rollo in NaplesAuthor: Jacob AbbottReleased on Project Gutenberg: February 2, 2008
- Rollo in ParisAuthor: Jacob AbbottReleased on Project Gutenberg: October 11, 2007
- Rollo in RomeAuthor: Jacob AbbottReleased on Project Gutenberg: November 10, 2007
- Rollo in ScotlandAuthor: Jacob AbbottReleased on Project Gutenberg: April 25, 2008
- Rollo in SwitzerlandAuthor: Jacob AbbottReleased on Project Gutenberg: August 23, 2007
- Rollo in the WoodsAuthor: Jacob AbbottReleased on Project Gutenberg: September 7, 2006
- Rollo on the AtlanticAuthor: Jacob AbbottReleased on Project Gutenberg: August 6, 2007
- Rollo on the RhineAuthor: Jacob AbbottReleased on Project Gutenberg: September 5, 2007
- Rollo's ExperimentsAuthor: Jacob AbbottReleased on Project Gutenberg: April 5, 2008
- Rollo's MuseumAuthor: Jacob AbbottReleased on Project Gutenberg: May 20, 2008
- Rollo's Philosophy. [Air]Author: Jacob AbbottReleased on Project Gutenberg: April 27, 2008
- Roman Antiquities, and Ancient Mythology: For Classical Schools (2nd ed)Author: Charles K. (Charles Knapp) DillawayReleased on Project Gutenberg: March 3, 2007
- Roman Britain in 1914Author: F. (Francis) HaverfieldReleased on Project Gutenberg: August 25, 2006
- Roman Farm Management: The Treatises of Cato and VarroAuthor: Cato, Marcus Porcius, Varro, Marcus Terentius, Fairfax HarrisonReleased on Project Gutenberg: April 1, 2004
- Roman History, Books I-IIIAuthor: Livy, 59 BCE-16, Duffield Osborne, William Jackson Brodribb, Alfred John Church, John Henry FreeseReleased on Project Gutenberg: January 1, 2004
- Roman Holidays, and OthersAuthor: William Dean HowellsReleased on Project Gutenberg: February 1, 2005
- Roman life in the days of CiceroAuthor: Alfred John ChurchReleased on Project Gutenberg: September 16, 2004
- Roman Mosaics; Or, Studies in Rome and Its NeighbourhoodAuthor: Hugh MacmillanReleased on Project Gutenberg: July 2, 2005
- RomanceAuthor: Joseph Conrad, Ford Madox FordReleased on Project Gutenberg: January 31, 2006
- Romance IslandAuthor: Zona Gale, H. C. (Hermann Carl) WallReleased on Project Gutenberg: October 13, 2004
- Romance of California Life: Illustrated by Pacific Slope Stories, Thrilling, Pathetic and HumorousAuthor: John HabbertonReleased on Project Gutenberg: October 22, 2004