Previous experiences from preceding individual and common activities realized from consortium members, primarily based on achieved outcomes in former Youth in Action projects encouraged consortium members to develop the idea of Capacity Building in the field of Youth around the world in order to learn the best practices and promotion tools for creating policies and implementing imaginative marketing campaigns for SDGs through using social media. Respecting the project aim and objectives, this Guide has two main parts focused on: (1) Sustainable Development Goals [SDGs] and, (2) Digital marketing tools, especially Social media. The future has always been uncertain. But it is more than ever now because of the speed at which we live. In the past, developments would take decades or centuries. This applied both to technology transfer – e.g., that of the printing press from China to Europe – as well as to the rise and fall of empires. But now in our lifetimes, the speed of change is approaching unfathomable rates. The last decade has witnessed some hallucinating changes in every domain – economics, geopolitics, social customs, and of course technology.