Organizations must understand the evolving digital galaxy and prepare to operate in it. The digital age offers an abundance of business opportunities and risks. The option of “sit and do nothing” will work, at best, for a short time. At some point, somewhere, others are already working on a business idea, a new digital technology or both, and those developments are liable to disrupt your organization’s current business model. It pays to be paranoid in this context. Furthermore, Organizations sometimes use the term “digital transformation” only because it’s trendy and evokes the image of an innovative organization. One of the mavens in this field, Rob Llewellyn, warns organizations about a phenomenon he calls “the great digital illusion.” “Change fixes the past, while transformation creates the future.” Engaging in simple projects is a good way to start cultivating capabilities, but does not provide the infrastructure for withstanding competitive pressure or for future prosperity. Herein lies the great challenge: doing both the high strategy and the daily grind of the digital. Mastering both the high-end strategic mindset and low-end bits and bytes mindset – this is the key to digital mastery. We tried in this book to review a wide range of aspects and issues relevant to digital transformation in order to ensure that readers are familiar with the background and theory required for action and results. And herein lies the great challenge: doing both the high strategy and the daily grind of the digital age. Mastering both the high-end strategic mindset and low-end bits and bytes mindset – this is the key to digital mastery. Bon digital voyage!