Merio Jackson
Big Book of Killer Sudoku Easy to Hard Volume 1 - 1000+ Deductive Reasoning Puzzles with Solutions- Big Book of Killer Sudoku Easy to Hard Volume 2 ~ 1000+ Deductive Thinking Puzzles with Solutions
- Big Book of Killer Sudoku Easy to Hard Volume 3 - 1000+ Mind Games Deduction Puzzles with Solutions
- Big Book of Killer Sudoku Easy to Hard Volume 4 - 1000+ Deductive Logic Puzzles with Solutions
- Big Book of Killer Sudoku Easy to Hard Volume 5 ~ 1000+ Spatial Reasoning Puzzles with Solutions
- Cryptogram Puzzle Book - Volume 1
- Samurai Sudoku Variant Activity Book Easy to Hard Volume 2
- Sea Life Scissor Skills Coloring Workbook