Uitgevers Grandmaster Puzzles

Cover for Thomas Snyder · The Art of Sudoku (Paperback Book) (2012)

The Art of Sudoku (2012)

Cover for Roger Barkan · Colossal Cave Collection (Paperback Book) (2017)

Colossal Cave Collection (2017)

Cover for Grant Fikes · Logic Puzzles 101: 101 Puzzles to Teach the Art of Logic (Paperback Book) (2017)

Logic Puzzles 101: 101 Puzzles t... (2017)