The Essex Book Festival is now underway having been opened by Billy Bragg, who spoke about his book Roots, Radicals and Rockers: How Skiffle Changed the World. Check out the Essex Book Festival websiite for details of this month's events. Highlights include writer-in-residence Syd Moore talking about her Essex Witch Museum mysteries. Plus radioactive stories in the Kelvedon Hatch Secret Nuclear Bunker, a crime-writing masterclass with Nicola Upson, eating like Queen Victoria with Dr Annie Gray, Nicci French on being a husband and wife writing double act, mountaineer Andy Kirkpatrick, Guardian columnist Erwin James on writing from inside, Gail Honeyman on Eleanor Oliphant and much more. The Festival runs until the end of March.