Jamie Bartlett is the author of The Dark Net, an examination of the hidden corners of the internet, its strange subcultures, and the protagonists that inhabit it – from trolls, Bitcoin miners, political extremists and members of the hacktivist group Anonymous, to pornographers, drug dealers, computer scientists and neo-nazis. His latest book, Radicals: Outsider Changing the World, explores the individuals, groups and movements that reject the way we live today, and is due for release this year.