- The Cosy Mystery Puzzle Book: The Murder of Mayor Malady: Over 90 crime puzzles to solve!
- Big Book of Codewords Book 1: a bumper codeword book for adults containing 300 puzzles
- Big Book of Codewords Book 2: a bumper codeword book for adults containing 300 puzzles
- Big Book of Codewords Book 3: a bumper codeword book for adults containing 300 puzzles
- The Hawke Files: Over 90 crime puzzles to solve! (Crime Puzzle Books)