A listener who reads a lot of tech lit seeks light reading: "I need a break. Can you recommend a book that uses puns or word plays?" What say you?
The Xanth novels by Piers Anthony are an unrelenting punfest. The first was A Spell For Chameleon.
You got time to waste, here's a punny site I had bookmarked in my "Diversions" folder. Took me awhile to get through all 200 of them:
http://www.punoftheday.com/cgi-bin/disppuns.pl?cat=0&ord=F=1?=0
There is a treasure trove here, at the site of Martha's first AWWW partner, Richard Lederer (Attila the Pun). You need look no further. Might I suggest these:
The Cunning Linguist
Get Thee to a Punnery