Adult education is a vast and complex field of research. Not only because new subjects appear with new awareness and new tasks but because politics, practice, action and reflection are fields in continuous evolution and mutual contamination. They require far-sighted, creative, refined, concrete theoretical thinking, which arises from practice and is nourished by it because it is in continuous dialogue and comparison with it. It is a research that shuns abstractions and theoretical principles and is fueled by the creation of knowledge useful for the formation of a collective subject. Paolo Federighi's scientific, political and institutional work is the synthesis of this and much more. The Volume is a collection of thoughts, essays, personal, professional and academic experiences of Colleagues who lived in his working groups that made history: both for the political innovations introduced and still in force and for the processes of organisational and community change that only the refined thought of a constantly evolving researcher could create so successfully.