In this episode of Talking History, our October books special: when Britain became a republic and why it ended in failure, with Prof Alice Hunt of the University of Southampton; magic and religious controversy in the 16th century, with Dr Violet Moller, author of Inside the Stargazer’s Palace: The Transformation of Science in 16th-Century Northern Europe; and how the CIA became an instrument of a new covert empire, with Prof Hugh Wilford of California State University.