1966. First Edition. 333 pages. Pictorial dust jacket over red cloth. Practical Mathematics Series Volume 8. Contains black and white in-text illustrations. Pages are lightly tanned and foxed throughout. Scuffed paper remnants to front free endpaper. Light thumb-marking present. Binding remains firm. Boards have mild edge wear with slight rubbing to surfaces. Soft crushing to spine ends. Book is slightly forward leaning. Unclipped jacket has heavy edge wear with some areas of loss, heavy tears, chips and creasing. Some loss to spine. Rubbed dark marking to surfaces. Scuffing to spine.