Jonathan Walker was born near Liverpool in England in 1969. He was educated at the universities of Glasgow and Cambridge and has published many articles in academic journals on topics such as gambling and espionage. From 2000 to 2002, he held a prestigious British Academy Postdoctoral Fellowship at Cambridge. In 2003, he moved to Australia to take up a Sesqui Postdoctoral Fellowship at the University of Sydney. He is currently Senior International Research Fellow at the same university. Pistols! Treason! Murder! is his first book.