1959. 4th Edition. 80 pages. White pictorial dust jacket over orange cloth. Orange edged text block. Pages are lightly tanned and thumbed at the edges. Binding has remained firm. Boards are a little rub worn, slight shelf wear to corners, spine and edges. Corners are a little bumped. Spine ends are mildly crushed. Light wear to clipped dust jacket with tears, nicks and creases to spine, edge and corners. Light tanning to spine and edges.Light water marks to edges and corners.