Interlocking isometric buildings rendered in crisp line work create an endless geometric tessellation across a cool gray ground. The white-lined structures, each topped with diagonal hatching, stack and interweave in three-dimensional perspective, forming a hypnotic pattern that suggests both urban architecture and optical illusion. Printed on smooth white card stock and made to order, artwork on the front, blank inside, envelopes included in every set. A handwritten note that arrives as an independent artist's work.