Book excerpt: The Art of The Polar Express celebrates the transformation of Chris Van Allsburg's celebrated children's book The Polar Express into a full-length, animated feature film through a fascinating collection of concept art, production storyboards, and computer-generated renderings. Production designer Doug Chiang shares his original, never-before-seen artwork that evolved into the final motion picture. Weaving these pieces together are candid interviews with the star-studded cast and crew, including Robert Zemeckis and his team of filmmaking visionaries, that deliver rare insight into the film as they divulge the secrets behind their creative process.