The cloud is not a fashion that appeared by chance, at the turn of a scientific discovery. First, because scientific discovery is the fruit of years of research, error, and reflection. Then, because without internet, there would be no cloud. Just like without Arpanet, there would never have been the Internet. The cloud is not the latest technology everyone is talking about. It is the ultimate result of powerful technological, commercial and human forces.Like wealth, the cloud is universal and poorly distributed. Some countries and organizations are powerfully endowed, while others are on the train. The reasons are many and never simple. Insufficient infrastructure has(u) Non-existent legal framework, from urban legends to psychological brakes, there are as many types of reluctance as reluctant people.Over the last decade, the cloud has been my daily life. First as the Office 365 Launch Lead for Microsoft in countries like Nigeria, Kenya and Ivory Coast. Then as sales and technical director for Microsoft in sub-Saharan Africa. And currently, as head of marketing of cloud technologies for Microsoft over the same geography. I had the chance to encounter the best and the worst, and to learn from all those experiences. To learn what works, what does not and mistakes to avoid. This book is a synthesis of those years, organized in seven steps.1. The cloud, this beautiful Nebula, defines what the cloud is.2. Limits and constraints of the cloud address security issues, the need for bandwidth and the focal point of cost.3. Urban legends address four major urban legends of the cloud: its lack of security, its legal limits, the potential loss of control and the ultimate Internet addiction.4. The legislation is dedicated to issues of sovereignty, protection, security, and confidentiality of personal data. 5. Best practices help you avoid mistakes and accelerate the adoption of cloud technology in the organization. 6. Chances and opportunities focus on how the cloud helps organizations transform. 7. The last step, and now what do we do, explains how to get started. If the cloud is now well anchored in our societies, and thanks to universal services like Uber, Airbnb or WhatsApp, a long way remains to go before organizations adapt, transform and adopt the cloud entirely. However, the movement seems inevitable. Under pressure from shareholders, customers, and employees, organizations cannot continue to spend millions of dollars in servers, networks, and private data centers. Just as the production of electricity or water, or the services of public utilities and sewage, the cloud brings these shared services that allow organizations to focus on their business and innovation. The cloud is a great catalyst for innovation.We are only at the beginning of the fourth industrial revolution. Find out in the following pages what fuels it! Good reading.