Paul is a fellow of the University of St Andrews Institute of Intellectual History and has written a previous book about Thomas Paine in Lewes. He has also written an article about John Maynard Keynes based on finding a new cache of letters from him to the Reverend Kenneth Rawlings in Lewes, about the genesis of Lewes Theatre Club, published in the History of European Ideas. Paul also teaches psychology at the Brighton and Sussex Medical School, a series of modules about substances that can be misused, with an emphasis on alcohol.