Our guest on Pathways today is Jonah Lehrer, author of the new book, Imagine: How Creativity Works.  He is also a contributing editor at Wired and a frequent contributor to The New Yorker. He writes the "Head Case" column for the Wall Street Journal and regularly appears on WNYC's Radiolab. The author of two previous books, Proust Was a Neuroscientist and How We Decide, he graduated from Columbia University and attended Oxford as a Rhodes scholar.