Have you seen it yet?
News of the recent opening of the Libraries' new exhibition, Paper Engineering: Fold, Pull, Pop & Turn is being featured across the web.
Come down and check out the vast array of pop-up books, ranging from as far back as the 15th century to today.
If you can't make it to D.C. just yet, this blog should whet your appetite . . .
Smithsonian Collections Search Center blog