This Book Is a Planetarium: And Other Extraordinary Pop-Up Contraptions (Popup Book for Kids and Adults, Interactive Planetarium Book, Cool Books for Adults)

 “A marvel of paper engineering and imagination.” —The New York Times Defying every expectation of what a book can be, this pop-up extravaganza transforms into six fully functional tools. This Book is a Planetarium is an interactive book for adults and kids that turns into: A working planetarium book projecting constellations on the ceilings and walls A musical instrument with strings to strum A geometric drawing generator An infinite calendar A message decoder A speaker that amplifies sou