The book "Treaty on the European Union. Treaty of Maastricht, February 7, 1992" is the official text of the agreement concluded between the countries of the European Union with the aim of consolidating and strengthening common goals and principles of cooperation. This document defined the main political, economic and social aspects of cooperation between EU member states. The Maastricht Treaty, which was concluded on February 7, 1992, defined the main directions of the European Union's activities on the way to political, economic and social integration. This agreement became an important step in the development of European integration, confirming the commitment of member countries to jointly develop and cooperate in various fields, based on common values and interests. The authorship of the book belongs to the European Union, which presents the text of the treaty and explains its importance and consequences for the further development of the European Union. This book serves as a source of information for those interested in the history and functioning mechanisms of the European Union, as well as allows a better understanding of the main principles and goals on which the cooperation of the member states of the Union is based.