Books about Conduct of life -- Juvenile fiction (sorted alphabetically)
- Joe Wayring at Home; or, The Adventures of a Fly-Rod Harry Castlemon
- Johnny Nut and the Golden Goose Charles Deulin
- John Tincroft, bachelor and benedict : or, Without intending it George E. Sargent
- John Williams : or The sailor boy Dorothea Lynde Dix
- Jolly Fellowship Frank R. Stockton
- Joyous Story of Toto Laura Elizabeth Howe Richards
- Julian Mortimer: A Brave Boy's Struggle for Home and Fortune Harry Castlemon
- Julius, the Street Boy; or, Out West Jr. Horatio Alger
- Jungle and Stream; Or, The Adventures of Two Boys in Siam George Manville Fenn
- Jungle Fugitives: A Tale of Life and Adventure in India Edward Sylvester Ellis
- Just Gerry Christine Chaundler
- Just Sixteen. Susan Coolidge
- Kate's ordeal Emma Leslie
- Kathie's Soldiers Amanda M. Douglas
- King of the Golden River John Ruskin
- King of the Park Marshall Saunders
- King's Sons George Manville Fenn
- Kittyleen Sophie May
- Knights of the White Shield Edward A. Rand
- Kun me olimme tyttöjä (Finnish) Sarah Doudney
- Laddie, and Miss Toosey's mission Evelyn Whitaker
- Lady Mary and Her Nurse; Or, A Peep into the Canadian Forest Catharine Parr Strickland Traill
- Lady of the Forest: A Story for Girls L. T. Meade
- Land of Mystery Edward Sylvester Ellis
- Land of Oz L. Frank Baum