Portrait of <n>Pablo Picasso</n> by photographer <n>Irving Penn</n> in Cannes, France, 1957.

The artist studio of <n>Joan Miró</n> in Palma, Spain.

<n>Insecta Lepidoptera-Rhopalocera, Tab. 43</n> (1879-1915), an illustration by <n>Frederick DuCane Godman</n>.

<n>Butterfly Identification Chart</n> (2014) by information designer <n>Eleanor Lutz</n>.

A 1956 photograph by <n>Arnold Newman</n> of artist <n>Pablo Picasso</n> in his studio at <n>Villa la Californie</n>.

Artist <n>Joan Miró</n> at work in his studio, circa 1979.