The book is devoted to the issues of historical development and peculiarities of legal regulation of bank guarantees in Ukraine and other countries related to different legal systems. Considerable attention is paid to bank guarantees in private international law. Based on a comparative legal analysis of the legislation and case law of a number of countries, the authors proposed ways to improve the current legislation of Ukraine in the field of bank guarantees in order to bring it in line with European standards in this area. International legal acts related to the regulation of bank guarantees, the authors examined the provisions of the Unified Rules for Guarantees on Demand in the 2010 edition and the current practice of their application. persons who are active subjects of private international law, as well as students studying law and economics.