Books in Bestsellers, American, 1895-1923 (sorted alphabetically)
- Mr. Crewe's Career — Complete Winston Churchill
- Mr. Crewe's Career — Volume 1 Winston Churchill
- Mr. Crewe's Career — Volume 2 Winston Churchill
- Mr. Crewe's Career — Volume 3 Winston Churchill
- Mr. Dooley in Peace and in War Finley Peter Dunne
- Mrs. Wiggs of the Cabbage Patch Alice Caldwell Hegan Rice
- My Four Years in Germany James W. Gerard
- My Friend Prospero Henry Harland
- My Home in the Field of Honor Frances Wilson Huard
- My Second Year of the War Frederick Palmer
- Mysterious Rider Zane Grey
- Mystic Isles of the South Seas. Frederick O'Brien
- Nan of Music Mountain Frank H. Spearman
- Nedra George Barr McCutcheon
- Net Rex Beach
- New Conscience and an Ancient Evil Jane Addams
- new freedom : a call for the emancipation of the generous energies of a people Woodrow Wilson
- Now It Can Be Told Philip Gibbs
- Oh, Money! Money! A Novel Eleanor H. Porter
- One Woman: A Story of Modern Utopia Jr. Thomas Dixon
- On the Face of the Waters: A Tale of the Mutiny Flora Annie Webster Steel
- Outline of History: Being a Plain History of Life and Mankind H. G. Wells
- Outline of Science, Vol. 1 (of 4) J. Arthur Thomson
- Out To Win: The Story of America in France Coningsby Dawson
- Outwitting Our Nerves: A Primer of Psychotherapy Josephine A. Jackson and Helen M. Salisbury