| Series Author Begun Ended Re-issued Volumes Notes |
| Rover Boys Arthur M. Winfield 1899 1926 n/a 30 |
| Soldiers of Fortune Edward Stratemeyer 1900 1906 n/a 4 |
| Colonial Edward Stratemeyer 1901 1906 n/a 6 |
| Putnam Hall Arthur M. Winfield 1901 1911 1921 6 |
| Pan-American Edward Stratemeyer 1902 1911 n/a 6 |
| Frontier Captain Ralph Bonehill 1903 1906 1908, 1912 3 [6] |
| Outdoor Series Captain Ralph Bonehill 1904 1905 1908 2 [7] |
| Bobbsey Twins Laura Lee Hope 1904 1979 72 [8] |
| Dave Porter Edward Stratemeyer 1905 1919 n/a 15 |
| Deep Sea Roy Rockwood 1905 1908 1918, 1926 4 |
| Boy Hunters Captain Ralph Bonehill 1906 1910 n/a 4 |
| Boys of Business Allen Chapman 1906 1908 n/a 4 |
| Boys of Pluck Allen Chapman 1906 1911 n/a 5 |
| Great Marvel Roy Rockwood 1906 1935 n/a 9 |
| Motor Boys Clarence Young 1906 1924 n/a 22 |
| Ralph of the Railroad Allen Chapman 1906 1933 n/a 11 [9] |
| Jack Ranger Clarence Young 1907 1911 n/a 6 |
| Darewell Chums Allen Chapman 1908 1911 1917 5 |
| Dorothy Dale Margaret Penrose 1908 1924 n/a 13 |
| Lakeport Edward Stratemeyer 1908 1912 n/a 6 |
| Webster Series Frank V. Webster 1909 1915 n/a 25 |
| College Sports Lester Chadwick 1910 1913 n/a 6 |
| Motor Girls Margaret Penrose 1910 1917 n/a 10 |
| Tom Swift Victor Appleton 1910 1941 n/a 40 |
| Outdoor Chums Captain Quincy Allen 1911 1916 n/a 8 |
| Baseball Joe Lester Chadwick 1912 1928 n/a 14 |
| Boys of Columbia High Graham B. Forbes 1912 1920 n/a 8 |
| Pioneer Boys Harrison Adams 1912 1928 n/a 8 [10] |
| Racer Boys Clarence Young 1912 1914 n/a 6 |
| Tommy Tiptop Raymond Stone 1912 1917 n/a 6 |
| Up and Doing Frederick Gordon 1912 1912 n/a 3 |
| Dave Dashaway Roy Rockwood 1913 1915 n/a 5 |
| Fred Fenton Athletic Series Allen Chapman 1913 1915 n/a 5 |
| Motion Picture Chums Victor Appleton 1913 1916 n/a 7 [11] |
| Moving Picture Boys Victor Appleton 1913 1922 n/a 15 [11] |
| Outdoor Girls Laura Lee Hope 1913 1933 n/a 23 |
| Ruth Fielding Alice B. Emerson 1913 1934 n/a 30 |
| Saddle Boys James Carson 1913 1915 n/a 5 [12] |
| Speedwell Boys Roy Rockwood 1913 1915 n/a 5 |
| Tom Fairfield Allen Chapman 1913 1915 n/a 5 |
| Amy Bell Marlowe's Books for Girls Amy Bell Marlowe 1914 1927 1933 10 |
| Back to the Soil Burbank L. Todd 1914 1915 n/a 2 [13] |
| Do Something Helen Beecher Long 1914 1919 n/a 5 [14] |
| Fairview Boys Frederick Gordon 1914 1917 n/a 6 |
| Girls of Central High Gertrude W. Morrison 1914 1919 n/a 7 |
| Moving Picture Girls Laura Lee Hope 1914 1916 n/a 7 |
| University Roy Eliot Stokes 1914 1914 n/a 2 |
| Bobby Blake Frank A. Warner 1915 1926 n/a 12 |
| Corner House Girls Grace Brooks Hill 1915 1926 n/a 13 |
| Kneetime Animal Stories Richard Barnum 1915 1922 n/a 17 |
| White Ribbon Boys Raymond Sperry, Jr. 1915 1916 n/a 2 |
| Bunny Brown and his Sister Sue Laura Lee Hope 1916 1931 n/a 20 |
| Joe Strong Vance Barnum 1916 1916 n/a 7 |
| Nan Sherwood Annie Roe Carr 1916 1937 n/a 7 |
| Rushton Boys Spencer Davenport 1916 1916 n/a 3 |
| Y.M.C.A. Boys Brooks Henderley 1916 1917 n/a 3 |
| Motion Picture Comrades Elmer Tracey Barnes 1917 1917 n/a 5 |
| Air Service Boys Charles Amory Beach 1918 1920 n/a 6 |
| Carolyn Ruth Belmore Endicott 1918 1919 n/a 2 |
| Dave Fearless Roy Rockwood 1918 1927 n/a 17 |
| Six Little Bunkers Laura Lee Hope 1918 1930 1933 14 |
| Betty Gordon Alice B. Emerson 1920 1932 n/a 15 |
| Billie Bradley Janet D. Wheeler 1920 1932 n/a 9 |
| Four Little Blossoms Mabel C. Hawley 1920 1930 1938 7 |
| Make Believe Stories Laura Lee Hope 1920 1923 n/a 12 |
| Oriole Amy Bell Marlowe 1920 1933 n/a 4 [15] |
| Sunny Boy Ramy Allison White 1920 1931 n/a 14 |
| Frank and Andy Vance Barnum 1921 1921 n/a 3 |
| Radio Boys Allen Chapman 1922 1930 n/a 13 |
| Radio Girls Margaret Penrose 1922 1924 n/a 4 |
| Honey Bunch Helen Louise Thorndyke 1923 1955 n/a 34 |
| Riddle Club Alice Dale Hardy 1924 1929 n/a 6 |
| Blythe Girls Laura Lee Hope 1925 1932 n/a 12 |
| Don Sturdy Victor Appleton 1925 1935 n/a 15 |
| Flyaways Alice Dale Hardy 1925 1925 n/a 3 |
| Barton Books for Girls May Hollis Barton 1926 1937 n/a 16 |
| Bomba, the Jungle Boy Roy Rockwood 1926 1938 1953, 1978 20 |
| Frank Allen Graham B. Forbes 1926 1927 n/a 17 [16] |
| Garry Grayson Football Stories Elmer A. Dawson 1926 1932 n/a 10 |
| Movie Boys Victor Appleton 1926 1927 n/a 17 [11] |
| Nat Ridley Rapid Fire Detective Stories Nat Ridley, Jr. 1926 1927 n/a 17 |
| X Bar X Boys James Cody Ferris 1926 1942 n/a 21 |
| Hardy Boys Mystery Stories Franklin W. Dixon 1927 2005 n/a 190 [17] |
| Ted Scott Flying Stories Franklin W. Dixon 1927 1943 n/a 20 |
| Bob Chase Big Game Series Frank A. Warner 1929 1930 n/a 4 |
| Lanky Lawson Harry Mason Roe 1929 1930 n/a 4 |
| Roy Stover Philip A. Bartlett 1929 1934 n/a 4 [18] |
| Buck and Larry Baseball Stories Elmer A. Dawson 1930 1932 n/a 5 |
| Campfire Girls Margaret Penrose 1930 1930 n/a 4 |
| Nancy Drew Mystery Stories Carolyn Keene 1930 2003 n/a 175 [19] |
| Slim Tyler Air Stories Richard H. Stone 1930 1936 n/a 7 |
| Doris Force Julia K. Duncan 1931 1932 n/a 4 |
| Jerry Ford Wonder Stories Fenworth Moore 1931 1932 1937 4 |
| Perry Pierce Clinton W. Locke 1931 1934 n/a 4 |
| Sky Flyers Eugene Martin 1931 1933 n/a 4 [20] |
| Dana Girls Mystery Stories Carolyn Keene 1934 1979 n/a 34 [19] |
| Kay Tracey Mystery Stories Frances K. Judd 1934 1942 1951–1953, 1961, 1964, 1978, 1980. 18 |
| Mary and Jerry Mystery Stories Francis Hunt 1935 1937 n/a 5 |
| Mel Martin Baseball Stories John R. Cooper 1947 1947 1952–1953 6 |
| The Happy Hollisters Jerry West 1953 1970 1979 33 |
| Tom Swift, Jr. Victor Appleton II 1954 1971 n/a 33 [21] |
| Honey Bunch and Norman Stories Helen Louise Thorndyke 1954 1963 n/a 12 |
| Bret King Mystery Stories Dan Scott 1960 1964 n/a 9 |
| Linda Craig Ann Sheldon 1962 1964 1981–1984 6 [22] |
| Christopher Cool, TEEN Agent Jack Lancer 1967 1969 n/a 6 |
| Tolliver Adventure Series Alan Stone 1967 1967 n/a 3 |
| Wynn and Lonny Racing Series Eric Speed 1975 1978 n/a 6 |
| Nancy Drew Picture Books Carolyn Keene 1977 1977 n/a 2 |
| Tom Swift III Victor Appleton 1981 1984 n/a 11 [23] |