Books in Browsing: Sociology (sorted alphabetically)
- London Labour and the London Poor, Vol. 3 Henry Mayhew
- London Labour and the London Poor, Vol. 4 Henry Mayhew
- London's Underworld Thomas Holmes
- long road of woman's memory Jane Addams
- Lotte civili (Italian) Edmondo De Amicis
- Love: A Treatise on the Science of Sex-attraction Bernard Simon Talmey
- Love—Marriage—Birth Control Viscount Bertrand Edward Dawson Dawson
- Love's Coming-of-Age: A series of papers on the relations of the sexes Edward Carpenter
- Lukinverkkoja: Pieniä tomupiiloja jotka kotionneamme haittaavat (Finnish) Harriet Beecher Stowe
- Lynch-law; an investigation into the history of lynching in the United States James Elbert Cutler
- Lysistrata : or, Woman's future and future woman Anthony M. Ludovici
- Maantiede ja löytöretket 2 : Suurien löytöretkien aikakausi (Finnish) Into Konrad Inha
- Mädchenhandel (German) Friedrich Wilhelm Hermann Wagener
- Maggie: A Girl of the Streets Stephen Crane
- Maids, Wives, and Bachelors Amelia E. Barr
- Mail Carrying Railways Underpaid Committee on Railway Mail Pay
- Making Both Ends Meet: The income and outlay of New York working girls Edith Wyatt and Sue Ainslie Clark
- Malthus and his work James Bonar
- Malthusian Handbook Anonymous
- Man and His Migrations R. G. Latham
- Man Farthest Down: A Record of Observation and Study in Europe Booker T. Washington and Robert Ezra Park
- Man from Mars: His Morals, Politics and Religion William Simpson
- Manhood of Humanity. Alfred Korzybski
- Manifest der Kommunistischen Partei (German) Karl Marx and Friedrich Engels
- Manifest der Kommunistischen Partei (German) Karl Marx and Friedrich Engels