The 5 Day Course In Thinking by Edward De Bono
1968. First Published in GB. 160 pages. Cream dust jacket over white paper covered boards. Black, white and red illustrations throughout. Binding remains firm. Pages are lightly tanned throughout. Pencil inscription to front free endpaper. Boards have light shelf-wear with corner bumping. Light tanning to spine and edges with crushing to spine ends. Unclipped jacket has light edgewear with tears and creasing. Water stain to spine.