There is no doubt that environmental policies have developed enormously from the beginning of the eighties up until now. These policies have served as a test ground for many policy concepts, which have been implemented in other areas since the beginning of the nineties: in evaluation, monitoring, implementation improvement schemes, contracting or redistribution. They opened up the way for new insights into the field of multilevel governance, new administrative arrangements and more recently the rediscovery of property and use rights as well as global and individual quota-regimes. This evolution has been closely documented by policy scientists and their work has occasionally greatly influenced ongoing governmental practice as well as the evolution of analytical frameworks and skills of policy science as a whole. This book, written by a practice-oriented political scientist, together with the teachers and researchers from various universities in Europe and the rest of the world is a testimony to both policy and the evolution of policy analyses over the last 25 years.