- Manual of Ship Subsidies: An Historical Summary of the Systems of All NationsAuthor: Edwin M. (Edwin Monroe) BaconReleased on Project Gutenberg: October 11, 2004
- Manual of Surgery Volume First: General Surgery. Sixth Edition.Author: Alexis Thomson, Miles, AlexanderReleased on Project Gutenberg: March 4, 2006
- Manual of the Mother Church: The First Church of Christ Scientist in Boston, MassachusettsAuthor: Mary Baker EddyReleased on Project Gutenberg: March 23, 2006
- Manuel Pereira; Or, The Sovereign Rule of South CarolinaAuthor: F. Colburn (Francis Colburn) AdamsReleased on Project Gutenberg: November 1, 2003
- Many cargoesAuthor: W. W. (William Wymark) JacobsReleased on Project Gutenberg: May 1, 2004
- Many KingdomsAuthor: Elizabeth Garver JordanReleased on Project Gutenberg: June 1, 2004
- Many Thoughts of Many Minds: A Treasury of Quotations from the Literature of Every Land and Every AgeAuthor: Louis KlopschReleased on Project Gutenberg: November 20, 2005
- Many Voices: PoemsAuthor: E. (Edith) NesbitReleased on Project Gutenberg: October 1, 1999
- Many Ways for Cooking EggsAuthor: S. T. RorerReleased on Project Gutenberg: September 1, 2004
- Mappo, the Merry Monkey: His Many AdventuresAuthor: Barnum, Richard, Tooker, Harriet H. [Illustrator]Released on Project Gutenberg: November 8, 2004
- MarcellaAuthor: Ward, Humphry, Mrs.Released on Project Gutenberg: October 12, 2004
- Marching MenAuthor: Sherwood AndersonReleased on Project Gutenberg: December 1, 2004
- Marcia SchuylerAuthor: Grace Livingston HillReleased on Project Gutenberg: August 1, 2007
- Marco Paul's Voyages and Travels; VermontAuthor: Jacob AbbottReleased on Project Gutenberg: March 1, 2004
- Marcus: the Young CenturionAuthor: George Manville FennReleased on Project Gutenberg: May 8, 2007
- Mardi, and a voyage thither, Vol. 1 (of 2)Author: Herman MelvilleReleased on Project Gutenberg: October 12, 2004
- Mardi, and a voyage thither, Vol. 2 (of 2)Author: Herman MelvilleReleased on Project Gutenberg: October 12, 2004
- Mare Nostrum (Our Sea): A NovelAuthor: Vicente Blasco Ibáñez, Jordan, Charlotte Brewster [Translator]Released on Project Gutenberg: March 1, 2004
- Margaret MontfortAuthor: Laura Elizabeth Howe Richards, Etheldred B. (Etheldred Breeze) BarryReleased on Project Gutenberg: March 14, 2008
- Margaret of Anjou: Makers of HistoryAuthor: Jacob AbbottReleased on Project Gutenberg: May 1, 2008
- Margaret OgilvyAuthor: J. M. (James Matthew) BarrieReleased on Project Gutenberg: October 1, 1995
- Margaret Smith's Journal: Part 1 from Volume V of The Works of John Greenleaf WhittierAuthor: John Greenleaf WhittierReleased on Project Gutenberg: December 1, 2005
- Margaret Smith's Journal, and Tales and Sketches, Complete: Volume V of The Works of John Greenleaf WhittierAuthor: John Greenleaf WhittierReleased on Project Gutenberg: December 1, 2005
- Margaret Tudor: A Romance of Old St. AugustineAuthor: Annie T. (Annie Toomer) Colcock, Gilbert, W. B., activeReleased on Project Gutenberg: January 17, 2008
- Marge AskinforitAuthor: Barry PainReleased on Project Gutenberg: July 11, 2008
- Margery (Gred): A Tale Of Old Nuremberg — CompleteAuthor: Georg Ebers, Clara BellReleased on Project Gutenberg: November 15, 2004
- Margery (Gred): A Tale Of Old Nuremberg — Volume 01Author: Georg Ebers, Clara BellReleased on Project Gutenberg: April 1, 2004
- Margery (Gred): A Tale Of Old Nuremberg — Volume 02Author: Georg Ebers, Clara BellReleased on Project Gutenberg: April 1, 2004
- Margery (Gred): A Tale Of Old Nuremberg — Volume 03Author: Georg Ebers, Clara BellReleased on Project Gutenberg: April 1, 2004
- Margery (Gred): A Tale Of Old Nuremberg — Volume 04Author: Georg Ebers, Clara BellReleased on Project Gutenberg: April 1, 2004
- Margery (Gred): A Tale Of Old Nuremberg — Volume 05Author: Georg Ebers, Clara BellReleased on Project Gutenberg: April 1, 2004
- Margery (Gred): A Tale Of Old Nuremberg — Volume 06Author: Georg Ebers, Clara BellReleased on Project Gutenberg: April 1, 2004
- Margery (Gred): A Tale Of Old Nuremberg — Volume 07Author: Georg Ebers, Clara BellReleased on Project Gutenberg: April 1, 2004
- Margery (Gred): A Tale Of Old Nuremberg — Volume 08Author: Georg Ebers, Clara BellReleased on Project Gutenberg: April 1, 2004
- Margot Asquith, an Autobiography - Two Volumes in OneAuthor: Margot AsquithReleased on Project Gutenberg: August 1, 2003
- Margret Howth: A Story of To-dayAuthor: Rebecca Harding DavisReleased on Project Gutenberg: May 1, 1996
- MargueriteAuthor: Anatole France, J. Lewis (James Lewis) MayReleased on Project Gutenberg: May 9, 2008
- Marguerite Verne; Or, Scenes from Canadian LifeAuthor: Rebecca Agatha ArmourReleased on Project Gutenberg: November 1, 2004
- Maria Chapdelaine: A Tale of the Lake St. John CountryAuthor: Louis Hémon, W. H. (William Hume) BlakeReleased on Project Gutenberg: August 1, 2003
- Maria Mitchell: Life, Letters, and JournalsAuthor: Maria Mitchell, Kendall, Phebe Mitchell [Compiler]Released on Project Gutenberg: November 1, 2003
- Maria; Or, The Wrongs of WomanAuthor: Mary WollstonecraftReleased on Project Gutenberg: March 8, 2006
- Marianson: From "Mackinac And Lake Stories", 1899Author: Mary Hartwell CatherwoodReleased on Project Gutenberg: October 30, 2007
- MarieAuthor: Laura Elizabeth Howe RichardsReleased on Project Gutenberg: November 11, 2004
- Marie Antoinette and Her SonAuthor: L. (Luise) MühlbachReleased on Project Gutenberg: October 1, 2002
- Marie Bashkirtseff (From Childhood to Girlhood)Author: Bashkirtseff, Marie, Mary J. (Mary Joanna) SaffordReleased on Project Gutenberg: November 1, 2004
- Marie ClaireAuthor: Marguerite Audoux, John N. (John Nathan) RaphaelReleased on Project Gutenberg: February 12, 2007
- Marie Gourdon: A Romance of the Lower St. LawrenceAuthor: Ogilvy, MaudReleased on Project Gutenberg: March 18, 2006
- Marie: An Episode in the Life of the Late Allan QuatermainAuthor: H. Rider (Henry Rider) HaggardReleased on Project Gutenberg: March 1, 1999
- Marie; a story of Russian loveAuthor: Aleksandr Sergeevich Pushkin, Zielinska, Marie H. de [Translator]Released on Project Gutenberg: August 1, 2003
- Marietta: A Maid of VeniceAuthor: F. Marion (Francis Marion) CrawfordReleased on Project Gutenberg: June 21, 2005
- Marigold GardenAuthor: Kate GreenawayReleased on Project Gutenberg: October 14, 2006
- Marine Protozoa from Woods Hole: Bulletin of the United States Fish Commission 21:415-468, 1901Author: Gary N. (Gary Nathan) CalkinsReleased on Project Gutenberg: May 5, 2006
- Marion Arleigh's Penance: Everyday Life Library No. 5Author: Charlotte M. BrameReleased on Project Gutenberg: February 26, 2005
- Marion's Faith.Author: Charles KingReleased on Project Gutenberg: January 7, 2007
- MariuchaAuthor: Benito Pérez Galdós, S. Griswold (Sylvanus Griswold) MorleyReleased on Project Gutenberg: March 25, 2008
- Marius the Epicurean — Volume 1Author: Walter PaterReleased on Project Gutenberg: May 1, 2003
- Marius the Epicurean — Volume 2Author: Walter PaterReleased on Project Gutenberg: May 1, 2003
- MarjorieAuthor: Justin H. (Justin Huntly) McCarthyReleased on Project Gutenberg: July 16, 2008
- Marjorie at SeacoteAuthor: Carolyn WellsReleased on Project Gutenberg: March 21, 2006
- Marjorie DawAuthor: Thomas Bailey AldrichReleased on Project Gutenberg: May 1, 1999