Digital transformation is an extremely important business model change which should have the highest attention among top management. This book provides a very interesting mix between case studies and interviews on digital transformation in large and small firms and theory development on digital transformation.Peter Verhoef, Professor of Marketing, Dean Faculty of Economics and Business, University of GroningenAn absolutely recommendable book on digital transformation due to the rich number of insights of real digital experts.Nils Stamm, Chief Digital Officer, Telekom Deutschland GmbH This book gives real insights what digital transformation really means for an enterprise. It’s not a one size fits all approach and clearly shows it takes real leadership to get things moving.Maarten Stramrood, Former Chief Digital Officer, Brenntag AG