Mountainside Matrix by Thomas Parker WilliamsMountainside Matrix is a sculptural book structure representing the natural complexity of a mountainside forest in autumn. The basic structure is made of six 12 panel parallel accordions tied together at each end and spaced apart to allow for collapsing to a flat form. Additional tie points are added in 20 places to allow for uniform movement when collapsing and extending. Magnetic catches secure the structure in the open and closed positions.