Participation as active involvement of individuals is a central prerequisite for the functioning of democracy and plays an important role, especially at the meso-level of organizations. Participation is a structural principle of flat hierarchies and the involvement of employees in organizational governance and decision-making processes. Through participation, self-organization within and by organizations can be promoted. It also redefines the question of contemporary leadership. This volume connects theoretical foundations and conceptual models of the relationship between participation and organization, presenting relevant empirical studies in various educational fields of action. Whether in the education system, the private sector, civil society, or in interconnected political and educational actions, participation is always at the forefront.