1966. Second Edition. 208 pages. Blue dust jacket over blue cloth. Pages remain bright and clear with minimal tanning and foxing. Previous owner's inscription to front free endpaper. Some pencil underlining and marginalia throughout. Mild foxing to text-block edges. Binding remains firm. Boards have mild edge wear with slight rubbing to surfaces. Soft crushing to spine ends. Slight tanning to spine and edges. Unclipped jacket has light edge wear with chips, tears and creasing. Mild rubbing and marking to surfaces, with scuffing to edges and small splits to joints. Tanning to spine and edges. Small sticker to inside front flap.