The Purple Clutchbook features Print Alvorada, inspired by the Palácio da Alvorada, the official residence of the Brazilian president. This building was designed by the Brazilian architect Oscar Niemeyer, one of the most influential in the history of the modernist movement. Niemeyer's work is characterized by his use of bold, sweeping curves and his inventive use of reinforced concrete. He frequently took inspiration from the natural world and argued that buildings should be organic and fluid.