Snowflake Bentley is a children's picture book written by Jacqueline Briggs Martin and illustrated by Mary Azarian. Published in 1998, the book is about Wilson Bentley, the first known photographer of snowflakes. Azarian won the 1999 Caldecott Medal for her illustrations. In 2003, the company Weston Woods Studios, Inc. adapted the book to a film, narrated by Sean Astin. It was released on DVD in 2004.