Before it happened, most political scientists denied that a fascist or Francoist dictatorship could evolve into a democratic regime. Spain managed, and now a Spanish political sociologist examines causes and context. His analysis is highly technical, full of charts and quantitative minutiae, but the process of how the elites sought reforms from above, the lower classes change from below, is painstakingly depicted, within the context of a political culture that is carefully analyzed. The author emphasizes that Francoist elements remain strong and pose a threat to the new regime. This is a monograph for the specialist in political sociology and Spanish politics.