The New York Times Daily Crossword Puzzles, by Will Shortz
Contains 50 moderately difficult puzzles appearing for the first time in book form and feature an introduction by Shortz. So sharpen your pencil, and enjoy this collection of puzzles from the pages of The New York Times.

The New Comprehensive A-Z Crossword Dictionary, Edy Garcia Schaffer
With over 225,000 entries-the world's most extensive, up-to-the-minute and easy-to-use crossword puzzle dictionary. Arranged alphabetically from start to finish, this dictionary is a boon for puzzle fans with thousands of updated references.

The Crossword Connection, by Nero Blanc
A book about Crossword.