1969. Third Edition. 127 pages. Pictorial dust jacket over blue cloth. Contains black and white illustrations throughout. Pages remain bright and clear with minimal tanning and foxing. Sticker to front free endpaper. Light creasing to gutter. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces. Soft crushing to spine ends. Light tanning to spine and edges. Small marks to boards. Clipped jacket has light edgewear with tears and creasing. Some tanning to spine. Water staining to front panel.