I would recommend The Artillery Service in the War of the Rebellion 18661-65 by John C. Tidball. 1905. Brevet Maj. General Tidball was an artillery commander throughout the Civil War. He reverted to his regular rank of Colonel after the war. He commanded the Artillery school at the end of the 19th Century. He makes 11 case studies of how the artillery was used in campaigns & battles through out the war. Tidball is concise & very to the point.