This week we look at the science, art, and craft of lexicography as we go backstage into the process of how dictionaries are made. We spend the hour with Kory Stamper, a lexicographer at Merriam-Webster and author of the book "Word by Word: The Secret Life of Dictionaries", to learn more about the history of dictionaries, what their purpose is, and how defining words isn't as straightforward as you might think.