- The Tatler, Volume 1Author: Steele, Richard, Sir, Joseph Addison, George Atherton AitkenReleased on Project Gutenberg: October 5, 2004
- The Tattva-MuktavaliAuthor: Gaudapurnanandacakravarti, active 17th century, Edward B. (Edward Byles) CowellReleased on Project Gutenberg: December 1, 2004
- The tavern knightAuthor: Rafael SabatiniReleased on Project Gutenberg: January 1, 2002
- The Teacher: Moral Influences Employed in the Instruction and Government of the YoungAuthor: Jacob AbbottReleased on Project Gutenberg: May 1, 2004
- The Teacher: Or, Moral Influences Employed in the Instruction and Government of the YoungAuthor: Jacob AbbottReleased on Project Gutenberg: August 6, 2007
- The Teaching of HistoryAuthor: E. C. (Ernest Clark) HartwellReleased on Project Gutenberg: January 3, 2005
- The Teaching of JesusAuthor: George JacksonReleased on Project Gutenberg: March 1, 2004
- The Teesdale AnglerAuthor: Lakeland, R.Released on Project Gutenberg: December 15, 2007
- The Teeth of the TigerAuthor: Maurice LeblancReleased on Project Gutenberg: July 30, 2004
- The Telegraph BoyAuthor: Alger, Horatio, Jr.Released on Project Gutenberg: December 24, 2007
- The Telegraph Messenger Boy; Or, The Straight Road to SuccessAuthor: Edward Sylvester EllisReleased on Project Gutenberg: June 20, 2008
- The Tell El Amarna PeriodAuthor: Carl Niebuhr, Hutchison, J. (Jane) [Translator]Released on Project Gutenberg: July 29, 2008
- The TempestAuthor: William ShakespeareReleased on Project Gutenberg: December 1, 1997
- The TempestAuthor: William ShakespeareReleased on Project Gutenberg: November 1, 1998
- The TempestAuthor: William ShakespeareReleased on Project Gutenberg: July 1, 1999
- The TempestAuthor: William ShakespeareReleased on Project Gutenberg: July 1, 2000
- The Tempest: The Works of William Shakespeare [Cambridge Edition] [9 vols.]Author: William Shakespeare, William George Clark, Glover, John, librarian of Trinity College, Cambridge [Editor]Released on Project Gutenberg: October 26, 2007
- The Temptation of Samuel Burge: Captains All, Book 8.Author: W. W. (William Wymark) Jacobs, Will OwenReleased on Project Gutenberg: February 1, 2004
- The Temptation of St. Antony; Or, A Revelation of the SoulAuthor: Gustave FlaubertReleased on Project Gutenberg: April 12, 2008
- The Tempting of TavernakeAuthor: E. Phillips (Edward Phillips) OppenheimReleased on Project Gutenberg: February 1, 2004
- The Ten Books on ArchitectureAuthor: Vitruvius PollioReleased on Project Gutenberg: December 31, 2006
- The Ten Pleasures of Marriage: and the Second Part, The Confession of the New Married CoupleAuthor: Marsh, A., Aphra Behn, John HarveyReleased on Project Gutenberg: October 26, 2004
- The Tenant of Wildfell HallAuthor: Anne Brontë, Ward, Humphry, Mrs.Released on Project Gutenberg: July 1, 1997
- The Tent on the Beach, and other poems: Part 4 from Volume IV of The Works of John Greenleaf WhittierAuthor: John Greenleaf WhittierReleased on Project Gutenberg: December 1, 2005
- The Terrible TwinsAuthor: Edgar Jepson, Hanson BoothReleased on Project Gutenberg: August 14, 2006
- The Testimony of the Bible Concerning the Assumptions of Destructive CriticismAuthor: S. E. (Samuel Ellis) WishardReleased on Project Gutenberg: May 10, 2005
- The Testing of Diana MalloryAuthor: Ward, Humphry, Mrs., William HatherellReleased on Project Gutenberg: September 14, 2004
- The Texan: A Story of the Cattle CountryAuthor: James B. (James Beardsley) HendryxReleased on Project Gutenberg: October 31, 2005
- The Texan Scouts: A Story of the Alamo and GoliadAuthor: Joseph A. (Joseph Alexander) AltshelerReleased on Project Gutenberg: May 4, 2005
- The Texan Star: The Story of a Great Fight for LibertyAuthor: Joseph A. (Joseph Alexander) AltshelerReleased on Project Gutenberg: May 18, 2005
- The Theater (1720)Author: Falstaffe, John, SirReleased on Project Gutenberg: June 7, 2005
- The Theological Tractates and The Consolation of PhilosophyAuthor: Boethius, Edward Kennard Rand, H. F. (Hugh Fraser) StewartReleased on Project Gutenberg: August 29, 2004
- The Theology of HolinessAuthor: Dougan ClarkReleased on Project Gutenberg: October 1, 2004
- The Theories of Darwin and Their Relation to Philosophy, Religion, and MoralityAuthor: Rudolf Schmid, G. A. (Gustav Adolf) ZimmermannReleased on Project Gutenberg: July 26, 2007
- The Theory and Practice of PerspectiveAuthor: G. A. (George Adolphus) StoreyReleased on Project Gutenberg: December 22, 2006
- The Theory of NumbersAuthor: R. D. (Robert Daniel) CarmichaelReleased on Project Gutenberg: October 10, 2004
- The Theory of Social RevolutionsAuthor: Brooks AdamsReleased on Project Gutenberg: January 1, 2004
- The Theory of the Leisure ClassAuthor: Thorstein VeblenReleased on Project Gutenberg: March 1, 1997
- The Theory of the Theatre, and Other Principles of Dramatic CriticismAuthor: Clayton Meeker HamiltonReleased on Project Gutenberg: October 3, 2004
- The Thin Red Line; and Blue BloodAuthor: Arthur GriffithsReleased on Project Gutenberg: December 31, 2005
- The Thin Santa Claus: The Chicken Yard That Was a Christmas StockingAuthor: Ellis Parker Butler, May Wilson PrestonReleased on Project Gutenberg: March 6, 2006
- The Thing from the LakeAuthor: Eleanor M. (Eleanor Marie) IngramReleased on Project Gutenberg: December 4, 2007
- The Things Which Remain: An Address To Young MinistersAuthor: Daniel A. (Daniel Ayres) GoodsellReleased on Project Gutenberg: May 18, 2005
- The Third and Last Part of Conny-Catching. (1592): With the new deuised knauish arte of Foole-takingAuthor: Greene, RobertReleased on Project Gutenberg: December 25, 2004
- The Third Great Plague: A Discussion of Syphilis for Everyday PeopleAuthor: John H. (John Hinchman) StokesReleased on Project Gutenberg: May 6, 2006
- The Third String: Odd Craft, Part 12.Author: W. W. (William Wymark) Jacobs, Will OwenReleased on Project Gutenberg: April 1, 2004
- The Third VioletAuthor: Stephen CraneReleased on Project Gutenberg: October 20, 2006
- The Thirsty Sword: A Story of the Norse Invasion of Scotland (1262-1263)Author: Robert LeightonReleased on Project Gutenberg: July 22, 2004
- The ThirteenAuthor: Honoré de Balzac, George Saintsbury, Ellen MarriageReleased on Project Gutenberg: September 19, 2004
- The Thirteenth Chair: A Play in Three ActsAuthor: Bayard VeillerReleased on Project Gutenberg: November 19, 2004
- The Thirty Years War — CompleteAuthor: Friedrich Schiller, A. J. W. (Alexander James William) MorrisonReleased on Project Gutenberg: December 8, 2004
- The Thirty Years War — Volume 01Author: Friedrich SchillerReleased on Project Gutenberg: October 1, 2004
- The Thirty Years War — Volume 02Author: Friedrich SchillerReleased on Project Gutenberg: October 1, 2004
- The Thirty Years War — Volume 03Author: Friedrich SchillerReleased on Project Gutenberg: October 1, 2004
- The Thirty Years War — Volume 04Author: Friedrich SchillerReleased on Project Gutenberg: October 1, 2004
- The Thirty Years War — Volume 05Author: Friedrich SchillerReleased on Project Gutenberg: October 1, 2004
- The Thirty-Nine StepsAuthor: John BuchanReleased on Project Gutenberg: June 1, 1996
- The Thorogood FamilyAuthor: R. M. (Robert Michael) Ballantyne, Austin, Henry [Illustrator]Released on Project Gutenberg: November 6, 2007
- The Thrall of Leif the Lucky: A Story of Viking DaysAuthor: Ottilie A. (Ottilia Adelina) LiljencrantzReleased on Project Gutenberg: October 1, 2003
- The three additions to Daniel, a studyAuthor: William Heaford DaubneyReleased on Project Gutenberg: May 1, 2004