"Make Way for Ducklings" won the 1942 Caldecott Medal for McCloskey's pictures, drawn in charcoal, then lithographed on zinc. In 2003, the book had sold more than two million copies. The book was so popular a statue of a mother duck and her eight ducklings were set up in the Public Garden. In 1991, Barbara Bush gave a copy of this statue to Raisa Gorbachev as part of the START Treaty, and the work is in Moscow's Novodevichy Park.