1972. Sixth Impression. 192 pages. Paperback book with pictorial cover. Pages remain bright and clear with minimal tanning and foxing. Thumb-marking present. Previous owner's inscription to first page. Minor dog-eared corners. Binding remains firm. Paper covers have moderate edge-wear with curling to corners and rubbing to surfaces. Light tanning to spine and edges. Visible scuffing to edges. Book has a rolled spine.