- Graphic Classics: O. Henry (Graphic Classics (Graphic Novels)) by O. Henry, Mort Castle, et all 2005-01-29
- The Gift of the Magi by Joel Priddy, O. Henry, 2009-11-01
- O. Henry: A Biography of William Sydney Porter by David Stuart, 1990-11
- O. Henry: A Study of the Short Fiction (Twayne's Studies in Short Fiction) (No 49) by Eugene Current-Garcia, 1993-07
- Alias O. Henry: A Biography of William Sidney Porter by Gerald Langford, 1983-06-08
- Writing Is My Business: The Story of O. Henry (World Writers) by Peggy Caravantes, 2006-09-30
- Selected Stories (Penguin Twentieth-Century Classics) by O. Henry, 1993-07-01
- Options by O. Henry, 2006-11-01
- Letters to Lithopolis by O. Henry, Mabel Wagnalls, et all 1999-10
- O. Henry (American men and women of letters series) by C. Alphonso Smith, 1991-07
- O. Henry, the Man and His Work by Eugene Hudson Long, 1967-01
- O. Henry: William Sydney Porter by Eugene Current-Garcia, 1965-06
- Through the Shadows With O. Henry (Double Mountain Books) by Al Jennings, 2002-06
- Cabbages and Kings (Penguin Twentieth-Century Classics) by O. Henry, 1993-07-01
|