What Shape Is Space?: A primer for the 21st century: 0 (The Big Idea)

Giles Sparrow is a Fellow of the Royal Astronomical Society, and author of many books, including the bestselling Cosmos and Mars: A New View of the Red Planet.

Matthew Taylor is Chief Executive of the NHS Confederation. Prior to that he was for 15 years Chief Executive of the RSA, a 250-year-old British institution devoted to enriching society through ideas and action to deliver a 21st-century enlightenment. A writer, public speaker and broadcaster, he has written numerous articles on policy, politics, public service reform and cultural theory, and frequently appears on Newsnight, The Daily Politics, and Radio 4’s Today and The Moral Maze. He was previously General Secretary and Chief Executive of the Institute for Public Policy Research, Britain’s leading think tank.