1962. Second Edition. 268 pages. Blue jacket over blue cloth. Contains black and white diagrams throughout. Pages are lightly tanned, but text remains clear. Binding is firm. Previous owner's inscription to front free endpaper, with label to pastedown opposite. Boards and spine have minimal shelf-wear, with minor corner bumping and crushing to ends. Heavy sunning to spine ends where dust jacket does not cover. Clipped jacket. Light tanning to all surfaces, heavier to spine. Panels have light edgewear, with small tears, chips and creases, heavier to spine ends.