The New York Times Seriously Hard Crossword Puzzles: 200 Challenging Puzzles by The New York Times
If you love the challenge that comes with the New York Times' hardest puzzles, you've met your match with this collection of 200 Friday and Saturday crosswords. - 200 of the most difficult puzzles from the Times - Puzzles edited by crossword legend Will Shortz - Convenient portable paperback size for on-the-go solving