- MavericksAuthor: William MacLeod Raine, Clarence RoweLanguage: English
- Maw's Vacation: The Story of a Human Being in the YellowstoneAuthor: Emerson HoughLanguage: English
- MaxAuthor: Katherine Cecil Thurston, Frank CraigLanguage: English
- Max Havelaar: Of de koffiveilingen der Nederlandsche HandelsmaatschappyAuthor: MultatuliLanguage: Dutch
- May BrookeAuthor: Anna Hanson DorseyLanguage: English
- McTeague: A Story of San FranciscoAuthor: Frank NorrisLanguage: English
- Medoline Selwyn's WorkAuthor: Colter, J. J., Mrs.Language: English
- Melbourne HouseAuthor: Susan WarnerLanguage: English
- Melbourne House, Volume 1Author: Susan WarnerLanguage: English
- Melbourne House, Volume 2Author: Susan WarnerLanguage: English
- Melmoth ReconciledAuthor: Honoré de Balzac, Ellen MarriageLanguage: English
- Melody : The Story of a ChildAuthor: Laura Elizabeth Howe RichardsLanguage: English
- Memnon ou la sagesse humaineAuthor: VoltaireLanguage: French
- Memoiren einer Sozialistin: KampfjahreAuthor: Lily BraunLanguage: German
- Memoiren einer Sozialistin: LehrjahreAuthor: Lily BraunLanguage: German
- Memoirs of Carwin the Biloquist (A Fragment)Author: Charles Brockden BrownLanguage: English
- Memoirs of Fanny Hill: A New and Genuine Edition from the Original Text (London, 1749)Author: John ClelandLanguage: English
- Memoirs of My Dead LifeAuthor: George MooreLanguage: English
- Memorie del Presbiterio: Scene di ProvinciaAuthor: Emilio PragaLanguage: Italian
- Memories: A Story of German LoveAuthor: F. Max (Friedrich Max) Müller, George P. (George Putnam) UptonLanguage: English
- Men Called Him MasterAuthor: Elwyn A. (Elwyn Allen) SmithLanguage: English
- Men in WarAuthor: Andreas LatzkoLanguage: English
- Men of AffairsAuthor: Roland PertweeLanguage: English
- Men's WivesAuthor: William Makepeace ThackerayLanguage: English
- MenhardocAuthor: George Manville Fenn, Charles Joseph StanilandLanguage: English
- MercenaryAuthor: Mack Reynolds, Lloyd BirminghamLanguage: English
- Mercy Philbrick's ChoiceAuthor: Helen Hunt JacksonLanguage: English
- Merely Mary AnnAuthor: Israel ZangwillLanguage: English
- Merton of the MoviesAuthor: Harry Leon WilsonLanguage: English
- Mesikämmen; Musti; Ahven ja kultakalatAuthor: Eino LeinoLanguage: Finnish
- Messenger No. 48Author: James OtisLanguage: English
- Messer Marco PoloAuthor: Donn ByrneLanguage: English
- MetamorphosisAuthor: Franz Kafka, Wyllie, David (Translator) [Translator]Language: English
- MetellaAuthor: George SandLanguage: French
- Mezzerow Loves CompanyAuthor: F. L. (Floyd L.) WallaceLanguage: English
- Mia kontrabanduloAuthor: Louisa May Alcott, Edwin GrobeLanguage: Esperanto
- Mia: RomanzoAuthor: MeminiLanguage: Italian
- Micah Clarke: His Statement as made to his three grandchildren Joseph, Gervas and Reuben During the Hard Winter of 1734Author: Arthur Conan DoyleLanguage: English
- Micah Clarke - Tome I: Les recrues de MonmouthAuthor: Arthur Conan Doyle, Albert SavineLanguage: French
- MichaelAuthor: E. F. (Edward Frederic) BensonLanguage: English
- Michael McGrath, PostmasterAuthor: Ralph ConnorLanguage: English
- Michael O'HalloranAuthor: Gene Stratton-PorterLanguage: English
- Michael Penguyne; Or, Fisher Life on the Cornish CoastAuthor: William Henry Giles KingstonLanguage: English
- Michael Strogoff; Or, The Courier of the CzarAuthor: Jules VerneLanguage: English
- Michael's CragAuthor: Grant AllenLanguage: English
- Michael, Brother of JerryAuthor: Jack LondonLanguage: English
- Michel and Angele [A Ladder of Swords] — CompleteAuthor: Gilbert ParkerLanguage: English
- Michel and Angele [A Ladder of Swords] — Volume 3Author: Gilbert ParkerLanguage: English
- Michel Strogoff: De Moscou a IrkoutskAuthor: Jules VerneLanguage: French
- MiddlemarchAuthor: George EliotLanguage: English
- Middy and EnsignAuthor: George Manville Fenn, Rowlandson, G. D. [Illustrator]Language: English
- MidnightAuthor: Octavus Roy CohenLanguage: English
- Midnight In Beauchamp Row: 1895Author: Anna Katharine GreenLanguage: English
- Mijnheer SnepvangersAuthor: Lode BaekelmansLanguage: Dutch
- MikeAuthor: P. G. (Pelham Grenville) WodehouseLanguage: English
- Mike and PsmithAuthor: P. G. (Pelham Grenville) WodehouseLanguage: English
- Mike Flannery On Duty and OffAuthor: Ellis Parker Butler, G. C. (Gustavus C.) WidneyLanguage: English
- Mike Fletcher: A NovelAuthor: George MooreLanguage: English
- Miles Wallingford: Sequel to "Afloat and Ashore"Author: James Fenimore CooperLanguage: English
- MillenniumAuthor: Everett B. ColeLanguage: English