Why am I smelling vanilla?

Vox.com Has a new piece up “Why “old book smell” has hints of vanilla” drawing on by Joachim Koch ‘s ILAB article “Is It More Than “Old Book Smell”?”

Hundreds of different chemicals are emitted by paper, binding, glue, and ink as they break down over time.

The high point is a marvelous infographic:

British chemistry teacher and blogger Andy Brunning of Compound Interest put together a nice infographic:
Aroma-Chemistry-The-Smell-of-Books-724x1024