GDP is the most influential indicator in the world. It is published all over the world and there is a powerful logistical infrastructure (the "GDP multinational") which involves national statistical offices, international institutes, policy researchers, academics, media and society. Yet GDP is not a good measure of sustainability or well-being and this is why hundreds of alternatives have been proposed in the last decades. This "Beyond-GDP cottage industry" is expanding all the time but there is no sign that it is going to threaten the dominance of GDP anytime soon. Replacing GDP by 2030 provides a strategy to overcome this situation by 2030 and Chapter 1 provides an outline of the arguments made in the book.