“Blue and Gray Navies: The Civil War Afloat” by Spencer C. Tucker is a comprehensive textbook published by Naval Institute Press in 2006. This 1st edition hardcover book delves into the military history of the United States during the Civil War period, specifically focusing on the naval aspect of the conflict. With 426 pages, this book offers a detailed account of the naval operations and strategies employed by the Union and Confederate forces during this significant period in American history. Tucker’s work provides valuable insights for those interested in military history and the Civil War era.