Collective work with the participation of eleven authors from different countries. New coordinates of such an important and ubiquitous institution as the administrative procedure institution is, are analyzed in this book. The ten chapters deal with the evolution of the process in today',s world: new generations of procedures as a result of new forms of government and administration, the onset of compound procedures, in which a plurality of administrations and agencies are involved, both inside and outside the State, new procedures for the development of rules, regulations and standards in risk and uncertainty scenarios, procedural principles that guide the activities and services rendered... It is an essential work of thinking to understand the evolution that the process experiences from decades ago.