Dr John Guy is a well-known historian and biographer. He has been a Fellow of History at Clare College Cambridge since 2003. Dr Guy specialises in English history during the Tudors and has written extensively on the subject. His research interests centres around early modern British History with an emphasis on politics, religion and political culture. His books have been critically acclaimed and he has appeared several times on the BBC Radio 4 programme In Our Time. His most recent project is a biography of Sir Thomas Gresham, the founder of Gresham College and the Royal Exchange.