The technology makes its debut today in the startup’s newest puzzle e-book, Sudoku Unbound Volume 3. Unlike some handwriting-recognition from years past, the TouchWrite technology doesn’t ...

Mental Floss columnist A.J. Jacobs has written a fascinating book called ... 1914 who made puzzles a profession,” as TIME magazine put it. Crafty entrepreneurs sold cheat sheets for as much ...

You know about puzzle books---books of puzzles, or books that are themselves puzzles. But then there's Codex Silenda---a gorgeous, wooden book of brainteasers that is itself a multi-part mystery.

The Lens Logic puzzle book contains a collection of crosswords and word searches for fans of all things Nikon, with more than 1,000 words to search and a selection of crosswords that range in ...