Images for press and publicity: click on each to access the full-size version.
Portrait one (credit Antony Irvine)
Portrait two (credit Tim Bedingfield)
At home (credit Antony Irvine)
Speaking at TED Global
UK cover of Live This Book! (Penguin, 2015)
UK cover of How to Thrive in the Digital Age (Pan Macmillan, 2012)
UK paperback cover of Fun Inc. (Virgin Books, 2011)