A grid of six scientific diagrams illustrates optical phenomena through concentric patterns and radiating lines rendered in warm golds, cool blues, and deep blacks against dark grounds. Each panel presents a different manifestation of light interference and diffraction, from kaleidoscopic rings to angular light-path tracings, capturing the precise mathematical beauty of 19th-century physics visualization. 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.