This book examines the process of presidentialisation of political parties in the Western Balkans. The Western Balkan countries deserve to be analysed in a comparative perspective due to their distinctive features in terms of processes of democratization, forms of government and institutional assets, the presence of social cleavages (religious, linguistic, ethnic), and, of course, the nature of political parties which differs from other European cases, especially in terms of origins, organization and structure. However, Western Balkan political parties do show certain similarities with other West European cases where power is centralised and held by the parties' leadership. The book ultimately attempts to test whether and to what extent the influence of institutional variables affects the level of presidentialisation of political parties, also considering the parties' organization features.