"Catholicism. The textbook on the subject "Comparative Theology"" is a collection of key texts on the subject "History of Western Confessions and Comparative Theology," which is studied in higher theological schools of the Russian Orthodox Church. It presents both official documents reflecting various aspects of the dogmatic teachings of the Roman Catholic Church, as well as polemical works of Orthodox authors. Both texts previously translated into Russian and new ones made by the compiler are presented.