In this episode Matt Crawford speaks with Giles Sparrow about his book A History of the Universe in 21 Stars. Sparrow guides us through the universe using 21 stars we can see easily in our sky. With humor, wit and drawings we follow along in this expertly laid out map of the stars and learn how they tell us about our past. Sparrow breaks down the stars in a way that is enjoyable and easy to follow. This is a great read for those just learning about the universe and I highly recommend it.