The book introduces readers to the basic knowledge about changes in the political party system, which started to take place after the parliamentary elections in 2010.The introductory part introduces the basic development of the political party system in the Czech Republic, discusses the characteristics of new actors and described the two concepts used, i.e. the business firm-party and the far-right populist parties. On the basis of this introductory chapter, new political parties are introduced in more detail, namely Public Affairs, the Dawn of Direct Democracy and Freedom and Direct Democracy (associated with Tomio Okamura) and Andrej Babiš’s ANO movement.