Spider Robinson's Off The Wall At Callahan's is a collection of epigrams, maxims, proverbs, observations, eye-watering puns, and original song lyrics distilled from the first five volumes of the Callahan's Place series. All of these gems were painstakingly deciphered from blown-up old photos of the wall behind the bar, where Callahan let his customers scrawl graffiti, so, technically, every word is off the wall. There are even capsule bios at the end for every person (real or imaginary) quoted in the graffiti section. Out of print for five years, new fans of Callahan's will be looking for this book.