The book "History of the Fifty-ninth Regiment of Illinois Volunteers" by David Lathrop is an important document about the events of the Civil War in the United States. The book describes in detail the battles, rapid changes and important moments of the military campaign of the fifty-ninth regiment. The author has collected a wide range of information about military operations, strategic decisions and the contribution of the regiment to the history of the war. Readers will be able to better understand the importance of the contribution of volunteers from Illinois to the struggle for the unity of the country. The book not only tells about military events, but also sheds light on the sacrifice and spirituality of soldiers who gave their lives for a noble cause.