|The NPL has published the book National Puzzlers' League Cryptic Crosswords, edited by Joshua Kosman (Trazom) and Henri Picciotto (Hot), Random House Puzzles & Games, ISBN 0812936604. This is now out of print and available for download. |
We have an introduction to solving Cryptic Crosswords where you can start.
|The National Puzzlers’ League previously published |
Hard-to-Solve Cryptograms by National Puzzlers League, Sterling, 2001, ISBN: 080695809X.
We have some more information on Solving Cryptograms.