Written by protagonists: "The Complete Memoirs of George Sherston" by Siegfried Sassoon. (Ignore the title, it's actually his autobiography, and you could prob

Written by protagonists: "The Complete Memoirs of George Sherston" by Siegfried Sassoon. (Ignore the title, it's actually his autobiography, and you could probably skip the first book in the trilogy). "Goodbye to all that" by Robert Graves. Two of the best writers in the English language recounting their times in the trenches.