Love cryptograms? We've got lotsa them for the avid solver-600 puzzles that are funny, punny, and smart.

For instance, can you figure out what this cryptogram says?

D Z T M X Q I Z M T Y T E M H N Y T O M C A R G T H A M N Z A H
W N V K H Q A Y C D Z A Y E Z A K A G M G Q B A W H A T B Q Y I
O F D Q M Z Z Q X ? " Q Y A A C X N H A E F T R A ." *

Solvers who enjoy the challenge, fun, and wordplay of cryptograms will find plenty of entertainment in this collection, which features a whopping 600 of these popular letter-substitution puzzles. Every cryptogram is pun-filled and amusing, so you'll feel an extra measure of satisfaction when you figure it out!

* WHAT MIGHT AN ASTRONAUT DECLARE TO HER BOYFRIEND WHEN SHE FELT LIKE BREAKING UP WITH HIM? "I NEED MORE SPACE."