“It takes a much greater effort to establish some basic numbers than in other areas of political science. Theoretically, political finance has often been isolated from the centre of political science and, indeed, from the centre of any other discipline. Chiara Fiorelli’s excellent book overcomes these challenges to provide us with a slew of basic data that contribute to one of the defining debates of European political science. … This is a vital book for political finance and party organization scholars.” (Iain McMenamin, Italian Political Science Review, February 7, 2022)