Illustrator Marc Simont has died at age 97. 

Simont won the Caldecott Medal in 1957 for A Tree Is Nice written by Janice May Udry.  Over his career, he illustrated nearly 100 books, according to an article in the New York Times covering his death. 

Perhaps his best known title is The Philharmonic Gets Dressed written by Karla Kuskin, one of my all-time favorite picture books.