1960. 8th Impression. 128 pages. Pictorial dust jacket over blue cloth. Black and white photographic plates throughout. Full title: Arithmetic in Action: a Practical Approach to Infant Number Work. Binding remains firm. Pages and plates are lightly tanned throughout. Tape marks to endpapers. Boards have light shelf-wear with corner bumping. Slight crushing to spine ends. Unclipped jacket has light edgewear with chips and creasing. Wear marks overall.