- Krazydad Two Not Touch Volume 1 : 360 Star Battle Puzzles to Preserve Your Sanity in These Trying Times
- Krazydad Two Not Touch Volume 2: 360 Star Battle Puzzles to Preserve Your Sanity in These Trying Times
- Krazydad Diabolical Two Not Touch Volume 1: 360 Tricky Star Battle Puzzles
- Kaleidoscope Logic Puzzles: A Mesmerizing Mix of Logic and Art
- Krazydad Killer Sudoku Volume 3: 360 Intermediate to Tough Puzzles