1977. Twenty-sixth edition. 254 pages. Pictorial dust jacket over blue cloth. Silhouettes by Dennis Punnett. 245 black & white illustrations. Pages and binding are presentable with no major defects. Minor issues present such as mild cracking, inscriptions, inserts, light foxing, tanning and thumb marking. Overall a good condition item. Boards have mild shelf wear with light rubbing and corner bumping. Some light marking and sunning. Clipped jacket has light edge-wear with minor tears and chipping. Mild rubbing and marking.