Michael Krasny's new book is called Let There Be Laughter. He tells NPR's Scott Simon about this treasury of great Jewish jokes, and why they matter.

ncG1vNJzZmivp6x7r7zRZ6arn19nfXKCjmlwaGpkZIF6gZFybGprYGS5psCMrZ%2BeqpVir6Z5y5qsoKCkmr9uuc6dnKumXZ%2ByuLXSoWSjp5uawG68zqScZpmkYq60v8imoKWZpJ68rw%3D%3D