This is a great book on how designers use wit in their graphic design solutions. I’ve used it as a textbook in my creative concepts class. The typographic idea is simple and surprise, surprise, witty to boot. It bears some similarity to the previous post, Pentagram V. Although it was written before Pentagram’s book, in 1996. David Stuart, co-author of the book was an art director at Pentagram, so maybe the similarity is no great surprise.