3S RECIPE is a project that offers the best practice and most feasible solutions to the problem of urban shrinkage – a continuous population decline affecting more than 1500 cities all over Europe. By learning from the experience of the cities that once were on the edge of an abyss but have bounced back to life, and sharing the key ingredients of their success across Europe and beyond, this project enables as many shrinking cities as possible to adapt, transform, and thrive in the face of continuously and often dramatically changing circumstances.