Fourth Edition. 256 pages. No dust jacket. Blue cloth boards with lettering. Hinges are moderately cracked with exposed netting. Moderate crinkling to paper at gutter. Pages are heavily tanned and foxed with visible markings throughout. Binding throughout is loose but pages remain attached. Pencil inscription markings to front free endpaper. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Slight crushing and fraying to spine ends and corners. Lettering is darkened. Moderate sunning to spine and edges. Visible wear marks to boards. Book has a slight forward lean.