These days you're not going to cut it with your 'knock knock… who's there?' jokes. So if you don't want the room to go completely tumbleweed you might want to read 'Spoedcursus Humor' ('A Crash Course in Humor') by Rob Urgert. In this book he unveils some of the secrets necessary in the noble art of making people laugh.

Two covers for this book. The bottom one was the first pick because the publisher wanted a book that said 'humor' really big. After the book shops and the editor figured it wasn't really selling they switched to Plan B (or the initial Plan A) and used the first design which we like better anyway...