Air is all around us, and we breathe 30,000 times a day. We depend on air for life itself, but how much do we know about it? Author William Bryant Logan has asked, and attempted to answer many questions about air that we might never have thought to consider. He’s put them into his new book, Air: The Restless Shaper of the World. He’ll join us to talk about the many ways we interact with air, and the many forms that air takes.