Books in Children's Book Series (sorted by popularity)
- The Boy Scouts of Lenox; Or, The Hike Over Big Bear Mountain Frank V. Webster 57 downloads
- The Airplane Boys among the Clouds; Or, Young Aviators in a Wreck John Luther Langworthy 56 downloads
- Pee-wee Harris on the Trail Percy Keese Fitzhugh 56 downloads
- The Saddle Boys of the Rockies; Or, Lost on Thunder Mountain Captain James Carson 56 downloads
- The Moving Picture Girls Under the Palms Laura Lee Hope 56 downloads
- Patty's Suitors Carolyn Wells 56 downloads
- The Eskimo Twins Lucy Fitch Perkins 56 downloads
- Grace Harlowe's Overland Riders on the Great American Desert Josephine Chase 56 downloads
- The Camp Fire Girls Go Motoring; Or, Along the Road That Leads the Way Hildegard G. Frey 55 downloads
- The Boy Allies with the Victorious Fleets; Or, The Fall of the German Navy Clair W. Hayes 55 downloads
- Dorothy Dale: A Girl of To-Day Margaret Penrose 55 downloads
- The Boy Allies under Two Flags Clair W. Hayes 55 downloads
- The Tale of Sandy Chipmunk Arthur Scott Bailey 55 downloads
- The French Twins Lucy Fitch Perkins 55 downloads
- The Boy Scouts on Sturgeon Island; or, Marooned Among the Game-fish Poachers active 1909-1917 Herbert Carter 55 downloads
- Fred Fenton on the Crew; Or, The Young Oarsmen of Riverport School Allen Chapman 55 downloads
- Peck's Compendium of Fun George W. Peck 55 downloads
- The Camp Fire Girls at Camp Keewaydin; Or, Paddles Down Hildegard G. Frey 54 downloads
- Dotty Dimple at Play Sophie May 54 downloads
- Princess Polly's Gay Winter Amy Brooks 54 downloads
- The Outdoor Girls in Florida; Or, Wintering in the Sunny South Laura Lee Hope 53 downloads
- The Camp Fire Girls in the Maine Woods; Or, The Winnebagos Go Camping Hildegard G. Frey 53 downloads
- The Outdoor Chums After Big Game; Or, Perilous Adventures in the Wilderness Quincy Allen 53 downloads
- The Motor Girls on Cedar Lake; Or, the Hermit of Fern Island Margaret Penrose 53 downloads
- Boy Scouts of the Air on Lost Island Gordon Stuart 53 downloads