This book investigates the evolving role and impact of political parties within democratic systems, particularly in the context of electoral change. Peter Mair, a distinguished political scientist, draws upon extensive comparative analysis of European party systems and electoral data to argue that traditional parties are undergoing a fundamental transformation. The work examines how shifts in electoral behavior, party organization, and the relationship between parties and the state are reshaping the landscape of representative democracy.

Peter Mair's work is recognized for its rigorous analysis of party politics and electoral dynamics. Scholars often cite his contributions to understanding the 'cartel party' thesis, which posits a convergence of governing parties. The book is considered a significant contribution to the study of comparative politics, offering a nuanced perspective on the challenges facing contemporary democracies.