1958. Sixth Edition. 330 pages. Red and beige dust jacket over blue cloth boards with gilt lettering to spine. Book 1. Binding remains firm. Crinkling to pages at gutters. Pages remain bright and clear with minimal tanning. Boards have mild edge wear with slight rubbing to surfaces. There is bumping to corners and crushing to spine ends. Tanning to spine and edges. Boards are bowed.Book has a slight forward lean. Paper remnants to back board. Unclipped jacket has light edge wear with minor tears and chipping. Mild rubbing and marking. Tanning to spine and edges. Water staining to back and spine.