Get the full Sudoku Journey series in one complete digital bundle. This four-book set guides solvers from very easy through hard in a clear, structured progression, with each 8.5 × 11 inch volume including 600 puzzles and full solutions.

Built for longer puzzle sessions and a more substantial solving experience, this bundle is ideal for anyone who wants the full four-volume progression in one purchase.

• 4 full digital PDF books

• 2,400 total Sudoku puzzles

• 8.5 × 11 inch format

• Full solutions included

• Complete four-volume progression