"Dave Birch gives one of the best accounts available today on how we'll navigate the challenges of the emerging payments landscape, and how traditional data points on identity don't really make sense in a digital world. An outstanding piece of work which may well define our journey moving forward." Brett King, Founder and CEO of Moven.com. "Dave Birch's thoughts on digital identity were seminal to the UK's Identity Assurance Scheme. Anyone entering the field of digital identity should take this book with them." David Rennie, Identity Assurance Programme, Government Digital Service, Cabinet Office.

David G.W. Birch is an internationally-recognised thought leader in digital money and digital identity. In 2013 he was named one of WIRED magazine's global top 15 favourite sources of news from the world of business and finance and was ranked the no.1 influencer in European emerging payments by Total Payments magazine. He is a Director of Consult Hyperion, the technical and strategic consultancy that specialises in electronic transactions. Described at the Oxford Internet Institute as "one of Britain's most acute observers of the internet and social networks", in The Telegraph as "one of the world's leading experts on digital money", in The Independent as a "grade-A geek", by the Centre for the Study of Financial Innovation as "one of the most user-friendly of the UK's uber-techies" and in Financial World as "mad", Dave is well-known for his thought leadership blogging, podcasts and events for Consult Hyperion's Tomorrow's Transactions series.