Books about Friendship -- Juvenile fiction (sorted alphabetically)
- Scamp and I: A Story of City By-Ways L. T. Meade
- School Friends; Or, Nothing New William Henry Giles Kingston
- Settler and the Savage R. M. Ballantyne
- Seven daughters Amanda M. Douglas
- Sheep and Lamb Thomas Miller
- Silver Lake R. M. Ballantyne
- Silverthorns Mrs. Molesworth
- Snowed Up; or, The Sportman's Club in the Mountains Harry Castlemon
- Some Little People George Kringle
- Squib and His Friends Evelyn Everett-Green
- Squire's Little Girl L. T. Meade
- Steel Horse: The Rambles of a Bicycle Harry Castlemon
- Story of the White-Rock Cove Anonymous
- Straight forward; or, walking in the light : a story for school girls of all ages Lucy Ellen Guernsey
- Sube Cane Bellamy Partridge
- Summer Days George M. Baker
- Summer in Leslie Goldthwaite's Life. A. D. T. Whitney
- Surprising Adventures of Sir Toady Lion with Those of General Napoleon Smith S. R. Crockett
- Susan Amy Walton
- Sweet Content Mrs. Molesworth
- Sweet Girl Graduate L. T. Meade
- Sweet P's Julie M. Lippmann
- Tabitha at Ivy Hall Ruth Brown MacArthur
- Tale of Betsy Butterfly Arthur Scott Bailey
- Tale of Bobby Bobolink Arthur Scott Bailey