This book provides a new analytical perspective on the strategies, membership and communication management of political parties in Poland. The authors address why some political parties have managed to strengthen and survive while others have failed to do the same. The research was carried out in the years 2016-2018, when Poland started to be seen more and more as a weakening democracy. As an in-depth, empirically grounded single-country study of party structure and communication, the book gives an opportunity to draw broader conclusions about the process of party development in the Central and Eastern Europe region three decades since the beginning of democratic transition. Michał Jacuński is Associate Professor of Political Science at the University of Wrocław, Poland. In his academic activity, he focuses on party politics, digital political communication, web campaigning and social media influence. He is one of the founders and guest editor of the Central European Journal of Communication. Barbara Brodzińska-Mirowska is Assistant Professor at the Nicolaus Copernicus University in Toruń, Poland. She is the author of articles on permanent communication, the professionalization of political communication and new media. Her scientific interests focus on political communication, political public relations, inter-electoral communication and mediatization of politics. Anna Pacześniak is Associate Professor of Political Science at the University of Wrocław, Poland. She is the author of over 100 scientific articles and chapters on the organization and internal life of parties, the EU's political system and the role of women in politics. Her research interests include the Europeanization of political parties and electoral defeats. Maria Wincławska is Assistant Professor at the Nicolaus Copernicus University in Toruń, Poland. Her research concentrates on the organization and activities of political parties and on the party members in democratic states, mainly in Poland and English-speaking democracies.