This chapter uses a unique collection of hundreds of issues of Golden Dawn (GD) publications and dozens of interviews with the GD leadership and activists to systematically trace its evolution from a street-level gang to the third biggest political party in Greece. The first part of the chapter briefly traces the development of the GD in the 1980s from a small National Socialist ideological movement to a marginal political party. The second part focuses on the ideological, programmatic and, more importantly, the organizational development of the party since the early 1990s. The third section focuses on its local party organizations and their activities, providing a rare overview of internal organizational life.