Frank Longo

About the Author

Frank Longo creates, fact-checks, and edits crossword puzzles, and also specializes in sudoku, having published more than 150 sudoku books. His books have sold more than 5 million copies. His wide array of titles encompasses both standard and variety sudoku puzzles, and includes Sip & Solve Simple Sudoku, The Peaceful Mind Book of Sudoku, Blockbuster Book of Sudoku, Beyond Black Belt Sudoku, and Puzzlewright Guide to Solving Sudoku (with Peter Gordon).

Skill Builder Sudoku: Easy to Medium

Skill Builder Sudoku: Easy to Medium

by Peter Gordon, by Frank Longo

Skill Builder Sudoku: Medium to Hard

Skill Builder Sudoku: Medium to Hard

by Peter Gordon, by Frank Longo

Skill Builder Sudoku: Hard to Expert

Skill Builder Sudoku: Hard to Expert

by Peter Gordon, by Frank Longo

Pause for Puzzles: Sudoku for Mindfulness

Pause for Puzzles: Sudoku for Mindfulness

Sit & Solve Tough Sudoku

Sit & Solve Tough Sudoku

Sit & Solve Simple Sudoku

Sit & Solve Simple Sudoku

Sudoku Puzzles for a Road Trip

Sudoku Puzzles for a Road Trip

Sudoku Puzzles for the Weekend

Sudoku Puzzles for the Weekend

Blockbuster Book of Sudoku

Blockbuster Book of Sudoku

The Peaceful Mind Book of Sudoku

The Peaceful Mind Book of Sudoku

Way Beyond Black Belt Sudoku®

Way Beyond Black Belt Sudoku®

Sudoku Puzzles for Vacation

Sudoku Puzzles for Vacation

Sudoku U: Senior Year

Sudoku U: Senior Year

mental_floss Sudoku

mental_floss Sudoku

Puzzlewright Guide to Solving Sudoku

Puzzlewright Guide to Solving Sudoku

by Frank Longo, by Peter Gordon

The Nastiest Sudoku Book Ever

The Nastiest Sudoku Book Ever

Beyond Black Belt Sudoku

Beyond Black Belt Sudoku

Poolside Sudoku

Poolside Sudoku

Third-Degree White Belt Sudoku®

Third-Degree White Belt Sudoku®

Third-Degree Brown Belt Sudoku®

Third-Degree Brown Belt Sudoku®

Third-Degree Black Belt Sudoku®

Third-Degree Black Belt Sudoku®

Absolutely Nasty® Sudoku Level 1

Absolutely Nasty® Sudoku Level 1

Absolutely Nasty® Sudoku Level 2

Absolutely Nasty® Sudoku Level 2

Absolutely Nasty® Sudoku Level 3

Absolutely Nasty® Sudoku Level 3

Absolutely Nasty® Sudoku Level 4

Absolutely Nasty® Sudoku Level 4

Second-Degree Green Belt Sudoku®

Second-Degree Green Belt Sudoku®

Second-Degree Brown Belt Sudoku®

Second-Degree Brown Belt Sudoku®

Second-Degree Black Belt Sudoku®

Second-Degree Black Belt Sudoku®