A completely unique and incredibly cool pop-up science book for adults and kids who love design, interactive art, and paper toys, This Book is a Planetarium is a single volume 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; and a speaker that amplifies sound. Artist Kelli Anderson contributes enlightening text alongside each pop-up, explaining the scientific principles at play in her constructions and creating an interactive experience that's as educational as it is extraordinary. Inspiring awe that lasts long after the initial pop, This Book Is a Planetarium leaves readers with a renewed appreciation for the way things work—and for the enduring magic of books.

This book is an instrument -- This book is a decoder ring -- This book is perpetual calendar -- This book is planetarium -- This book is a speaker -- This book is a spiralgraph.