The electronic resource "Azerbaijan-Iran: diplomatic relations" of the Presidential Library is dedicated to the 30th anniversary of the establishment of diplomatic relations between the two neighboring and brotherly countries. Diplomatic relations between the Republic of Azerbaijan and the Islamic Republic of Iran were established on March 12, 1992. The electronic resource consists of 5 chapters and 13 subsections. The "Historical Reference" section of the resource analyzes the relations between the Islamic Republic of Iran and the Republic of Azerbaijan and contains a "Chronology" reflecting the dynamic development of these relations. The "Documents" section of the electronic resource provides users with the full texts of the documents signed between Azerbaijan and Iran on foreign policy - declarations, agreements, treaties, memoranda, protocols and orders. The "E-resources" section contains electronic versions of books and articles on Azerbaijani - Iranian relations in different languages. The resource also provides a bibliography of books, newspaper and magazine articles, abstracts on this topic that are included in the library’s collection.