- More Translations from the ChineseAuthor: Arthur Waley, Juyi BaiReleased on Project Gutenberg: August 10, 2005
- More WilliamAuthor: Richmal Crompton, Thomas HenryReleased on Project Gutenberg: November 21, 2005
- Moriah's Mourning and Other Half-Hour SketchesAuthor: Ruth McEnery StuartReleased on Project Gutenberg: January 24, 2007
- Morien: A Metrical Romance Rendered into English Prose from the Mediæval DutchAuthor: Jessie L. (Jessie Laidlay) WestonReleased on Project Gutenberg: July 1, 2005
- Mormon Settlement in Arizona: A Record of Peaceful Conquest of the DesertAuthor: James H. McClintockReleased on Project Gutenberg: January 1, 2006
- Morning Bells; Or, Waking Thoughts for Little OnesAuthor: Frances Ridley HavergalReleased on Project Gutenberg: March 1, 2004
- Morning StarAuthor: H. Rider (Henry Rider) HaggardReleased on Project Gutenberg: April 4, 2006
- Mornings in FlorenceAuthor: John RuskinReleased on Project Gutenberg: January 1, 2005
- Mornings in the College Chapel: Short Addresses to Young Men on Personal ReligionAuthor: Francis Greenwood PeabodyReleased on Project Gutenberg: January 20, 2008
- MoroccoAuthor: S. L. (Samuel Levy) Bensusan, A. S. (Archibald Stevenson) ForrestReleased on Project Gutenberg: August 13, 2005
- Mosaics of Grecian HistoryAuthor: Marcius Willson, Wilson, Robert PierpontReleased on Project Gutenberg: November 1, 2004
- Mosses from an old manseAuthor: Nathaniel HawthorneReleased on Project Gutenberg: April 1, 1996
- MotherAuthor: Owen WisterReleased on Project Gutenberg: July 1, 1998
- MotherAuthor: Maksim Gorky, Sigismond de IvanowskiReleased on Project Gutenberg: February 1, 2003
- Mother Carey's Chicken: Her Voyage to the Unknown IsleAuthor: George Manville Fenn, A. (Amédée) ForestierReleased on Project Gutenberg: May 4, 2007
- Mother Carey's ChickensAuthor: Kate Douglas Smith WigginReleased on Project Gutenberg: December 1, 2003
- Mother Goose: The Original Volland EditionAuthor: Eulalie Osgood Grover, Frederick RichardsonReleased on Project Gutenberg: February 15, 2008
- Mother Goose in ProseAuthor: L. Frank (Lyman Frank) Baum, Maxfield ParrishReleased on Project Gutenberg: March 1, 2004
- Mother Goose or the Old Nursery RhymesAuthor: Kate GreenawayReleased on Project Gutenberg: December 10, 2007
- Mother Hubbard, Her Picture Book,: Containing Mother Hubbard, The Three Bears, & The Absurd A, B, C.Author: Walter CraneReleased on Project Gutenberg: June 7, 2008
- Mother StoriesAuthor: Maud Lindsay, Sarah Noble IvesReleased on Project Gutenberg: May 28, 2005
- Mother Stories from the New Testament: A Book of the Best Stories from the New Testament that Mothers can tell their ChildrenAuthor: AnonymousReleased on Project Gutenberg: November 26, 2005
- Mother Stories from the Old Testament: A Book of the Best Stories from the Old Testament that Mothers can tell their ChildrenAuthor: AnonymousReleased on Project Gutenberg: November 26, 2005
- Mother West Wind "How" StoriesAuthor: Thornton W. (Thornton Waldo) Burgess, Harrison CadyReleased on Project Gutenberg: May 4, 2007
- Mother West Wind "Where" StoriesAuthor: Thornton W. (Thornton Waldo) BurgessReleased on Project Gutenberg: December 7, 2005
- Mother West Wind "Why" StoriesAuthor: Thornton W. (Thornton Waldo) Burgess, Harrison CadyReleased on Project Gutenberg: February 7, 2005
- Mother West Wind's ChildrenAuthor: Thornton W. (Thornton Waldo) Burgess, George F. KerrReleased on Project Gutenberg: March 22, 2007
- Mother's Remedies: Over One Thousand Tried and Tested Remedies from Mothers of the United States and CanadaAuthor: Thomas Jefferson RitterReleased on Project Gutenberg: January 1, 2006
- Mother: A StoryAuthor: Kathleen Thompson NorrisReleased on Project Gutenberg: January 1, 2003
- Moths of the Limberlost: A Book About Limberlost CabinAuthor: Gene Stratton-PorterReleased on Project Gutenberg: January 1, 2004
- Motor Boat Boys Mississippi Cruise; or, The Dash for DixieAuthor: Arundel, LouisReleased on Project Gutenberg: June 30, 2007
- Mound-BuildersAuthor: Smyth, William J.Released on Project Gutenberg: March 12, 2006
- Mount MusicAuthor: E. Oe. (Edith Oenone) Somerville, Martin RossReleased on Project Gutenberg: November 11, 2004
- Mountain Idylls, and Other PoemsAuthor: Alfred Castner KingReleased on Project Gutenberg: October 20, 2004
- Mountain Moggy: The Stoning of the WitchAuthor: William Henry Giles KingstonReleased on Project Gutenberg: May 15, 2007
- Mountain Pictures, and other poems: Part 2 From Volume II of The Works of John Greenleaf WhittierAuthor: John Greenleaf WhittierReleased on Project Gutenberg: December 1, 2005
- Mouser Cat's StoryAuthor: Prentice, AmyReleased on Project Gutenberg: April 1, 2005
- Mozart: The Man and the Artist, as Revealed in His Own WordsAuthor: Wolfgang Amadeus Mozart, Friedrich Kerst, Henry Edward KrehbielReleased on Project Gutenberg: May 1, 2003
- Mr. AchillesAuthor: Jennette LeeReleased on Project Gutenberg: April 13, 2006
- Mr. Bamboo and the Honorable Little God: A Christmas StoryAuthor: Frances LittleReleased on Project Gutenberg: December 25, 2005
- Mr. BingleAuthor: George Barr McCutcheonReleased on Project Gutenberg: June 1, 2004
- Mr. Bonaparte of CorsicaAuthor: John Kendrick BangsReleased on Project Gutenberg: May 1, 2002
- Mr. Britling Sees It ThroughAuthor: H. G. (Herbert George) WellsReleased on Project Gutenberg: November 16, 2004
- Mr. Crewe's Career — CompleteAuthor: Winston ChurchillReleased on Project Gutenberg: October 16, 2004
- Mr. Crewe's Career — Volume 1Author: Winston ChurchillReleased on Project Gutenberg: October 16, 2004
- Mr. Crewe's Career — Volume 2Author: Winston ChurchillReleased on Project Gutenberg: October 16, 2004
- Mr. Crewe's Career — Volume 3Author: Winston ChurchillReleased on Project Gutenberg: October 16, 2004
- Mr. Dooley in Peace and in WarAuthor: Finley Peter DunneReleased on Project Gutenberg: September 7, 2007
- Mr. Dooley SaysAuthor: Finley Peter DunneReleased on Project Gutenberg: January 13, 2005
- Mr. Dooley's PhilosophyAuthor: Finley Peter DunneReleased on Project Gutenberg: April 1, 2005
- Mr. Dooley: In the Hearts of His CountrymenAuthor: Finley Peter DunneReleased on Project Gutenberg: October 18, 2004
- Mr. Edward Arnold's New and Popular Books, December, 1901Author: Edward ArnoldReleased on Project Gutenberg: March 30, 2005
- Mr. FaustAuthor: Arthur Davison FickeReleased on Project Gutenberg: February 25, 2008
- Mr. Fortescue: An Andean RomanceAuthor: Westall, WilliamReleased on Project Gutenberg: January 24, 2005
- Mr. Gladstone and Genesis: Essay #5 from "Science and Hebrew Tradition"Author: Thomas Henry HuxleyReleased on Project Gutenberg: May 1, 2001
- Mr. Grex of Monte CarloAuthor: E. Phillips (Edward Phillips) Oppenheim, Will GreféReleased on Project Gutenberg: February 17, 2007
- Mr. Hawkins' Humorous AdventuresAuthor: Edgar FranklinReleased on Project Gutenberg: May 1, 2005
- Mr. Hogarth's WillAuthor: Catherine Helen SpenceReleased on Project Gutenberg: July 1, 2003
- Mr. Isaacs, A Tale of Modern IndiaAuthor: F. Marion (Francis Marion) CrawfordReleased on Project Gutenberg: August 31, 2004
- Mr. Jack Hamlin's MediationAuthor: Bret HarteReleased on Project Gutenberg: May 18, 2006