This is a wonderful book by the author of The Invention of Hugo Cabret. It has many layers and once I finished I immediately wanted to go back and search the pictures for clues. 2 stories interweave back and forth- one in words, the other in pictures. Themes include the history of Natural history museums and Cabinets of Wonder, the Deaf community, New York past and present and the World Fair 1964 and much more. It is a thick book, as is Hugo Cabret, but many pages are pictures so it is a quick read for adults. It would be a lovely story to read with a child who is interested in science.