The book "Collection of Letters and Messages of the Presidents. Volume 4, Part 3: James Knox Polk" is a valuable document that provides the reader with an opportunity to better understand the period of American history associated with the presidency of James Polk. This book collects messages and messages that reflect the political activities and key aspects of the presidency of this outstanding figure. The reader will have the opportunity to join the historical context, feel the atmosphere of that time and learn about important events and decisions that were made during the presidency of James Polk. Every message, every word is of great importance, because they reflect important moments in the life of the country and its leader. "Collection of Messages and Messages of the Presidents. Volume 4, Part 3: James Knox Polk" will be an important resource for those interested in the history, politics and culture of the United States of America, as well as for anyone who wishes to gain a deeper understanding of the context of the emergence and development of this great nation .