1. This Present Darkness (2002, originally 1986, fiction) (Also on audio cd and repack edition.)
2. Tilly (1988, fiction) - There is a DVD film based on this book.
3. Piercing the Darkness (2002, originally 1989, fiction) (Also on audio cd and Spanish and repack edition.)
4. Prophet (2003, originally 1992, fiction) (Also repack edition)
5. The Oath (1995, fiction) - 1996 ECPA Gold Medallion Award for best fiction. Out of print.
6. The Visitation (2011, originally 1999, fiction) - There is a DVD film based on this book
7. The Wounded Spirit (2000, non-fiction) (Also with Leader’s Guide, on cassette, and as audio download.)
8. No More Victims (2001, non-fiction booklet)
9. The Veritas Project: Hangman's Curse (2001, teen fiction) (Also on cassette, CD, and in digital format.) - There is a DVD film based on this book.
10. The Veritas Project: Nightmare Academy (2002, teen fiction) (Also on cassette and CD.)
11. No More Bullies (2003, non-fiction) - Adaptation of The Wounded Spirit.
12. Monster (2011, originally 2005, fiction)
13. Cooper Kids Adventure Series (2005, fiction).
14. House (2006, fiction) - Co-written with Ted Dekker. (Also on CD unabridged, also on DVD.)
15. Illusion (2012, fiction). (Also on audio CD unabridged.)