The book "The United States after the Civil War" by Charles Ramsdell Lingley is a study of the important events and transformations that took place in the history of the United States after the end of the Civil War. The author carefully analyzes the political and social changes that accompanied reconstruction, industrial development, foreign policy and other key aspects of American history in the second half of the 19th century and in the 20th century. The book provides deep insight into the complex processes that determined the development and radical changes in the history of the United States.