- Solve-it-yourself mysteriesHy Conrad
- Mr. Monk is open for businessHy Conrad
- Mr. Monk gets on boardHy Conrad
- Kids' WhodunitsHy Conrad
- Whodunit crime mysteriesHy Conrad
- Whodunit Crime PuzzlesHy Conrad
- Almost perfect murdersHy Conrad
- Mr. Monk helps himselfHy Conrad
- Mensa whodunitsBill Wise, Hy Conrad et al.
- Whodunit--you decide!Hy Conrad
- The little giant book of whodunitsHy Conrad
- Things your dog doesn't want you to knowHy Conrad
- Toured to deathHy Conrad
- Almost perfect crimesHy Conrad
- Mr. Monk and the new lieutenantHy Conrad
- Historical whodunitsHy Conrad
- Crimenes Casi PerfectosHy Conrad
- Case of the Ghostly Note & Other Solve-It-Yourself WhodunitsHy Conrad
- The Jonah Bixby mysteriesHy Conrad
- Solve-it-yourself mysteriesHy Conrad, Bob Peterson
- Atrapa al Culpable / Whodunit Crime Mysteries (Desvela El Misterio / Revealing Mystery)Hy Conrad
