The book "Theology of the Icon of the Orthodox Church," written by Leonid Alexandrovich Uspensky, is one of the classic works on the history and spiritual content of Christian art. Written brightly and without frills, it will certainly be useful to anyone who seeks to comprehend the origins and meaning of the Orthodox icon. This work aims to show the evolution of the icon and its content in a historical perspective. In its first part, this book reproduces in abbreviated form and slightly modified the previous edition in French, published in 1960 under the title: "Essai sur la theologie de l'icone." The second part is composed of separate chapters, most of which are published in Russian in the journal Bulletin of the Russian Western European Patriarchal Exarchate.