David is a coach, mentor, trainer and author.

He has coached a variety of individuals and companies (ranging from start-ups to traditional organisations) over a range of industries (including wine, travel, health, fashion, government, automotive and finance).

David is currently conducting doctoral research into how humour can be used effectively in coaching (at Oxford Brookes), has a post-graduate certificate in Business & Personal Coaching from University of Chester, is certified by the International Coach Federation as a Professional Certified Coach, as well as having a bundle of agile-related qualifications.

David is heavily involved in the Agile and Lean communities: he founded the London Agile Discussion Group, Agile on the Bench and London Lean Coffee, runs public training through Adventures With Agile and General Assembly, and speaks at conferences and events around the world.

He is the author of 'The Innovation Revelation: A story about how to satisfy customer needs', 'The Lemonade Stall: How to test and validate ideas' and 'Scrum 101: the most frequently asked questions about Agile with Scrum', as well as the creator of the global-selling workshop game ('Iterative Incremental Big Bang').