a taxonomy for the forms, signs, and symbols they encountered. The two were inspired by the emphasis on sign and symbol they found on the Las Vegas strip. The result was a critique of Modern architecture, demonstrated most famously in the comparison between the "duck" and "decorated shed."

The "duck" represents a large part of modernist architecture, which was expressive in form and volume. In contrast, the "decorated shed" relies on imagery and sign. Virtually all architecture before the Modern Movement used decoration to convey