Set your watch to 30 minutes, because that's how long you have to finish each of these 72 fiendish, timed crosswords. They're created by some of the members of

What better way is there to spend a half-hour than by curling up with a creative and challenging crossword? You’re sure to enjoy many hours of brain-stretchin

It’s puzzle nirvana for crossword lovers who have just a few minutes to spare, but still crave a challenge. Adapted from the popular Mensa 10-Minute Crossword

The ultimate challenge for the truly fearless crossword aficionado, this puzzle book presents 225 crosswords selected from Simon & Schuster's prestigious crossw

From Simon & Schuster, the Super Crossword Book #7 is a challenging collection of 225 stellar crosswords from the series that started it all. Maleska and Samson