Books in Children's Book Series (sorted by popularity)
- Tom Swift and His Big Tunnel; Or, The Hidden City of the Andes Victor Appleton 102 downloads
- Prudy Keeping House Sophie May 101 downloads
- The Adventures of Jimmy Skunk Thornton W. Burgess 101 downloads
- Tom Swift and His Photo Telephone or the Picture That Saved a Fortune Victor Appleton 101 downloads
- Elsie's Womanhood Martha Finley 100 downloads
- Polly's Business Venture Lillian Elizabeth Roy 100 downloads
- A Little Girl in Old Salem Amanda M. Douglas 100 downloads
- The Tale of Solomon Owl Arthur Scott Bailey 99 downloads
- The Boy Scout Camera Club; Or, the Confession of a Photograph G. Harvey Ralphson 98 downloads
- Tom Swift and His War Tank; Or, Doing His Bit for Uncle Sam Victor Appleton 98 downloads
- Ruth Fielding at the War Front; or, The Hunt for the Lost Soldier Alice B. Emerson 98 downloads
- Tom Swift and His Undersea Search; Or, the Treasure on the Floor of the Atlantic Victor Appleton 97 downloads
- The Boy Allies with Haig in Flanders; Or, the Fighting Canadians of Vimy Ridge Clair W. Hayes 97 downloads
- The Automobile Girls in the Berkshires; Or, The Ghost of Lost Man's Trail Laura Dent Crane 96 downloads
- Grandmother Elsie Martha Finley 96 downloads
- Tom Swift and His Sky Racer; Or, The Quickest Flight on Record Victor Appleton 94 downloads
- The Wonder Island Boys: Exploring the Island Roger T. Finlay 94 downloads
- The Outdoor Girls at Rainbow Lake; Or, The Stirring Cruise of the Motor Boat Gem Laura Lee Hope 94 downloads
- The Tale of Pony Twinkleheels Arthur Scott Bailey 94 downloads
- The Adventures of Poor Mrs. Quack Thornton W. Burgess 93 downloads
- Tom Slade, Motorcycle Dispatch Bearer Percy Keese Fitzhugh 93 downloads
- Bunny Brown and His Sister Sue in the Sunny South Laura Lee Hope 92 downloads
- Ethel Morton's Enterprise Mabell S. C. Smith 91 downloads
- The Radio Boys' First Wireless; Or, Winning the Ferberton Prize Allen Chapman 91 downloads
- Peck's Bad Boy and His Pa George W. Peck 91 downloads