| Series | | Books |
| Hunter Adams |
| |
| The Man From Planet-X | | (1975) |
| | | (1975) |
| | | (1977) |
| |
| |
| Jack Lancer |
| |
| Christopher Cool | | (1967) |
| | | (1967) |
| | | (1967) |
| | | (1967) |
| | | (1968) |
| | | (1969) |
| |
| |
| Jim Lawrence |
| |
| Other | | Tom Swift and His Atomic Earth Blaster (1954) |
| | | Tom Swift and His Outpost In Space (1955) |
| | | Tom Swift on the Phantom Satellite (1956) |
| | | Tom Swift and His Diving Seacopter (1956) |
| | | Tom Swift and His Ultrasonic Cycloplane (1957) |
| | | Hardy Boys: The Ghost at Skeleton Rock (1957) |
| | | Tom Swift and His Space Solartron (1958) |
| | | Tom Swift in the Race to the Moon (1958) |
| | | Tom Swift and His Deep-Sea Hydrodome (1958) |
| | | Tom Swift and His Spectromarine Selector (1959) |
| | | Tom Swift and His Electronic Retroscope (1959) |
| | | Hardy Boys: Mystery of the Chinese Junk (1959) |
| | | Hardy Boys: Mystery at Devil's Paw (1959) |
| | | Tom Swift and the Visitor From Planet X (1960) |
| | | Tom Swift and the Cosmic Astronauts (1960) |
| | | Tom Swift and the Electronic Hydrolung (1961) |
| | | Tom Swift and His Triphibian Atomicar (1962) |
| | | Tom Swift and His Megascope Space Prober (1962) |
| | | Tom Swift and the Asteroid Pirates (1963) |
| | | Tom Swift and His Repelatron Skyway (1963) |
| | | Tom Swift and His Aquatomic Tracker (1964) |
| | | Tom Swift and His 3-D Telejector (1964) |
| | | Tom Swift and His Sonic Boom Trap (1965) |
| | | Tom Swift and His Polar-Ray Dynasphere (1965) |
| | | Tom Swift and His Subocean Geotron (1966) |
| | | Tom Swift and the Mystery Comet (1966) |
| | | Tom Swift and the Captive Planetoid (1967) |
| | | Hardy Boys: The Sting of the Scorpion (1978) |
| | | Hardy Boys: Mystery of the Samurai Sword (1979) |
| | | Hardy Boys: Night of the Werewolf (1979) |
| | | Hardy Boys: The Apeman's Secret (1980) |
| | | Hardy Boys: The Outlaw's Silver (1981) |
| | | Hardy Boys: Tic-Tac-Terror (1982) |
| | | A.I.Gang: The Cutlass Clue (1986) |
| |