- «The Searchers» (1960)
- «The Big Game» (1962)
- «The Battle of the Giants» (1964)
- «The Great Battle of the Apes» (1965)
- «The Land that Time Forgot» (1966)
- «The People That Time Forgot» (1967)
- "Out of Time's Abyss" (1968)
- "Beyond Time's End" (1969)
- «Castle Death» (1970)
- «King Cobra» (1971)
- «The Lost World» (1972)
- "Plague City" (1973)
- «The Return of Tarzan» (1974)
- «The Warlord of Mars» (1975)
- «Η Πριγκίπισσα του Άρη» (1976)
- «Ο Τζον Κάρτερ και ο Γίγαντας του Άρη» (1977)
- «The Gods of Mars» (1978)
- «Thuvia, Maid of Mars» (1979)
- «Tarnsman of Gor» (1980)
- «Assassin of Gor» (1981)
- «Slave Girl of Gor» (1982)
- "Rogue of Gor" (1983)
- «Captive of Gor» (1984)
- "Raiders of Gor" (1985)
- «Fight for Gor» (1986)
- «Tribesmen of Gor» (1987)
- "Outlaw of Gor" (1988)
- «Savages of Gor» (1989)
- "Hunter of Gor" (1990)
- «Killer of Gor» (1991)
- «Destroyer of Gor» (1992)
- «Beast Master of Gor» (1993)
- «Slave Lord of Gor» (1994)
- «Βάλντορ, ο κατακτητής του Γκορ» (1995)
- «The Wizard King of Gor» (1996)
- «Caballus, the Horse Lord of Gor» (1997)
- «The Heirs of Gor» (1998)
- «Tarl Cabbot, Ruler of Gor» (1999)
- "Lord of the Barge" (2000)
- "The Ice King" (2001)
- «The Lost Legion» (2002)
- «The Iron Wolves of the North» (2003)
- «The Last of the Celts» (2004)
- «The Lion's Pride» (2005)
- «The Eagle's Flight» (2006)
- «The Wolf's Revenge» (2007)
- «The Bear's Fury» (2008)
- «The Dragon's Fire» (2009)
- «The Serpen's Shadow» (2010)
- «Ο Ιστός της Αράχνης» (2011)
- «The Scorpion's Sting» (2012)
- «The Tiger's Claw» (2013)
- «The Shark's Teeth» (2014)
- «The Crocodile's Jaws» (2015)
- «The Elephant's Trunk» (2016)
- «The Hippo's Charge» (2017)
- «The Rhino's Horn» (2018)
- «The Buffalo's Stampede» (2019)
- «The Lion's Roar» (2020)
Διηγήματα:
- "The Death Mask" (1960)
- "The Temple of Terror" (1961)
- "The Eye of the Idol" (1962)
- "The Curse of the Mummy" (1963)
- «Οι ανθρωποφάγοι του Τσάβου» (1964)
- "The Leopard of the Snow" (1965)
- "The White Death" (1966)
- "The Ghost Tiger" (1967)
- "The Giant Squid" (1968)
- "The Loch Ness Monster" (1969)
- "The Abominable Snowman" (1970)
- "The Thunderbird" (1971)
- "The Quetzalcoatl" (1972)
- "The Great Serpen" (1973)
- "The Vampire Bat" (1974)
- "The Werewolf" (1975)
- "The Zombie" (1976)
- "The Mummy" (1977)
- "The Ghost" (1978)
- "The Demon" (1979)
- "The Witch" (1980)
- "The Wizard" (1981)
- "The Sorcerer" (1982)
- "The Necromancer" (1983)
- "The Warlock" (1984)
- "The Enchanter" (1985)
- "The Conjurer" (1986)
- "The Illusionist" (1987)
- "The Trickster" (1988)
- "The Jester" (1989)
- "The Fool" (1990)
- "The Knave" (1991)
- "The Knight" (1992)
- "The Rook" (1993)
- "Ο Επίσκοπος" (1994)
- "The Queen" (1995)
- "The King" (1996)
- "The Emperor" (1997)
- "The Empress" (1998)
- "The Pope" (1999)
- "The Cardinal" (2000)
- "Ο Επίσκοπος" (2001)
- "The Priest" (2002)
- "The Deacon" (2003)
- "The Monk" (2004)
- "The Nun" (2005)
- "The Saint" (2006)
- "The Sinner" (2007)
- "The Devil" (2008)
- "The Heretic" (2009)
- "The Apostate" (2010)
- "The Blasphemer" (2011)
- "The Atheist" (2012)
- "The Agnostic" (2013)
- "The Deist" (2014)
- "The Pantheist" (2015)
- "The Polytheist" (2016)
- "The Monotheist" (2017)
- "The Henotheist" (2018)
- "The Animist" (2019)
- "The Shintoist" (2020)