The book "Personal Recollections of the Civil War by One Who Participated in It as a Private in the 21st Massachusetts Volunteer Infantry" by James Madison Stone is a valuable document of memories of the American Civil War. With the help of vivid language and apt details, the author conveys important events that he experienced on his own skin during the war. His story reveals the brutality of war, the heroism and devotion of the soldiers, as well as the inner world of the individual who was in the conflict. This book helps readers better understand the tragic Civil War era in the history of the United States, and also leads to reflection on important aspects of military service and military discipline.