Frontispiece from Shelby Foote's The Civil War, A Narrative
For interesting reading you might try the following:
Freeman, Douglas Southall, Robert E. Lee, Schribners, N.Y., 1961
An Abridgment by Richard Harwell of the 1934 Pulizer Prize Winning 4 Volume Biography.
Taylor, Walter H., General Lee, His Campaigns in Virginia, 1861-1865, University of Nebraska Press, 1994
Originally published in 1908 with many personal reminiscences of the officer who functioned as Lee's chief of staff during the war.
Foote, Shelby, The Civil War, a Narrative, Volume I, Fort Sumpter to Perryville, Random House, New York, 1958
Foote, Shelby, The Civil War, a Narrative, Volume II, Fredericksburg to Meridian, Random House, New York, 1963
Foote, Shelby, The Civil War, a Narrative, Volume III, Red River to Appomattox, Random House, New York, 1974
Mitchell, Joseph B., Decisive Battles of the Civil War, Random House, New York, 1955
Freeman, Douglas Southall, Lee's Lieutenants, Vols. I-III, Scribner's Sons, New York, 1942-44
Longstreet, James, From Manassas to Appomattox, Da Capo Press, New York, 1992, (originally published by J. B. Lippincott, 1895).
Stackpole, E. J., They Met at Gettysburg, Stackpole Books, Harrisburg, Pa., 1956
Foote, Shelby, Shiloh: A Novel, Random House, New York, 1952
Cash, W. J., The Mind of the South, Doubleday, Garden City, New York, 1941
Bradford, G., Lee, The American, Houghton Mifflin, Cambridge, Mass., 1912