The Art of Puzzles is a collection of mental masterpieces from the world's most talented puzzle designers. With ten genres of logic puzzles and over 270 puzzles
You've never seen Sudoku like this! In The Art of Sudoku you'll find 120 hand-crafted masterpieces from World Sudoku Champion Thomas Snyder, with artistic and l
This newly expanded and updated second edition of the best-selling classic continues to take the "mystery" out of designing algorithms, and analyzing their effi
Bob Howard, geekish demonology hacker extraordinaire for "The Laundry," must stop ruthless billionaire Ellis Billington from unleashing an eldritch horror, code