White Belt KenKen® (Martial Arts Puzzles Series)
Green Belt KenKen® (Martial Arts Puzzles Series)
Black Belt KenKen® (Martial Arts Puzzles Series)
KenKen: For Experts Only: 100 Challenging Logic Puzzles That Make You Smarter
Will Shortz Presents Ferocious KenKen: 200 Challenging Logic Puzzles That Make You Smarter