这本立体书将转变成六种功能齐全的工具：一个可以工作的天文馆投射星座，一种有琴弦的乐器，几何绘图工具，无限的日历，一个信息译码器，还有是一个能放大声音的扬声器。

适合所有年龄.

Defying every expectation of what a book can be, this pop-up extravaganza transforms into six fully functional tools: a real working planetarium projecting the constellations, a musical instrumentcomplete with strings for strumming, a geometric drawing generator, an infinite calendar, amessage decoder, and even 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 of all ages with a renewed appreciation for the way things work and for the enduring magic of books.