- 1989: The Serpent's Bite
- 1989: The Devil's Right Hand
- 1990: Son of the Serpent
- 1990: Curse of the Jackal
- 1990: Vengeance of the Assassin
- 1991: Fury of the Assassin
- 1991: Shadow of the Sheikh
- 1991: Sword of the Samurai
- 1992: Wrath of the Kung Fu Master
- 1992: Edge of the Knife
- 1992: Blood of the Tiger
- 1993: Claws of the Dragon
- 1993: Eyes of the Ninja
- 1993: Heart of the Warrior
- 1994: Fury of the Fire Dragon
- 1994: Revenge of the Shadow Master
- 1994: The Ninja's Secret
- 1995: Master of the Hidden Fist
- 1995: Fist of the Praying Mantis
- 1996: The Art of the Ninja
- 1996: Secrets of the Ninja
- 1997: Code of the Ninja
- 1997: Ninja Vengeance
- 1998: The Ninja's Last Stand
- 1998: Sword of the Ninja
- 1999: Legacy of the Ninja
- 2000: Shadow Warrior
- 2000: The Ninja Within
- 2001: Spirit of the Ninja
- 2002: Soul of the Ninja
- 2003: Last of the Ninja
- 2003: Ghost Warrior
- 2004: The Ninja's Legacy
- 2005: The Ninja Chronicles
- 2006: The Ninja Scrolls
- 2007: Night of the Ninja
- 2008: Dawn of the Ninja
- 2009: Shadow Ninja
- 2010: Blood Ninja
- 2011: Ghost Ninja
- 2012: Demon Ninja
- 2013: Death Ninja
- 2014: Hell Ninja
- 2015: Apocalypse Ninja
- 2016: Ninja Armageddon
- 2017: Ninja Annihilation
- 2018: Ninja Apocalypse
- 2019: Ninja Extinction
- 2020: Ninja Holocaust
- 2021: Ninja Armageddon
- 2022: The Last Ninja
Nonfiction Books
- 2006: The History of the Ninja
- 2008: The Art of the Ninja
- 2009: The Secrets of the Ninja
- 2010: The Code of the Ninja
- 2011: The Ninja Chronicles
- 2012: The Ninja Scrolls
- 2013: Night of the Ninja
- 2014: Dawn of the Ninja
- 2015: Shadow Ninja
- 2016: Blood Ninja
- 2017: Ghost Ninja
- 2018: Demon Ninja
- 2019: Death Ninja
- 2020: Hell Ninja
- 2021: Apocalypse Ninja
- 2022: The Last Ninja