The book presents the main provisions of republicanism, a school of political thought that has existed for the last two millennia, but which attracted particular attention in such disciplines as history and political theory in the late 20th and early 21st centuries due to the fact that for many, republicanism became the main alternative to liberalism. Unlike a similar publication published in the ABC of Concepts series by the European University at St. Petersburg, in this book the author included more detail in the presentation of almost all the arguments, examined the history of the French and American revolutions, added a section on the relationship between republicanism and Marxism, and dwelt in more detail on republican issues as they apply to modern Russia.