| Sudoku 25x25 Volume 4: Sudoku Xtra Specials | | |
| Sudoku 25x25 : Sudoku Xtra Specials | | |
| Sudoku 16x16 Volume 5: Sudoku Xtra Specials | | |
| Sudoku 16x16 : Sudoku Xtra Specials | | |
| Sudoku 16x16 Volume 11: Sudoku Xtra Specials | | |
| Handicapping the Wall Street Way: Picking Xtra | | |
| Xtra: The Art of Being | | |
| Xtra: The Art of Being | | |
