* The Zodiac Unmasked: The Identity of the Zodiac Killer Revealed (2017)
* The Riddle of the Zodiac: The Zodiac Killer and the Unsolved Murders (2019)
* The Zodiac Killer's Letters: A comprehensive study (2019)
* The Zodiac Connection: The true identity of the Zodiac Killer and his link to the Manson Family murders (2020)
Fiction
* The Scorpio Murders: A chilling suspense novel inspired by the Zodiac Killer (2018)
* The Zodiac Killer's Daughter: A psychological thriller (2019)
* The Zodiac's Revenge: A fast-paced thriller (2020)