This Book describes a very difficult topic: the writing of information codes, the daily work of legions of coders and various kind of hackers. The Digital World, the pervasive technoculture owe many things to these subjects: managing codes they hold technical power to operate directly on codes creation processes, modelling the reality. Mass Media regularly reproduce in a concerted way ridiculous banalization of digital activism. Hackers are useful bogeymen for total thought from any kind of political current, and they are functional for pre-packed answers. The most evident effect of this policy was the criminalization of large brackets of people who have access to the net, in a general mood of indifference. At this time, downloading of in-copyright materials (audios, videos, text documents and everything else) represents a penal illecit, in spite of technical reproducibility. These trials to harness the creative freedom, that have been already partially enforced, involve everybody's life.