A Torn Page

The cook in the nook took a look at a book:
to check on some ingredients,
But dropped the sage to assuage a page --
archiving as expedient.

Cyndi

You'd meet her borrowing a book
but might not guess that she's a cook.

Where She Was

The search for Cyndi ended when
they thought to check library-n.

Do We Decimal?

In libraries they sort the books
by numbers on the spine
except it's only some books;
for others, words are fine.

The number system varies;
several methods have been used,
I wanted a good book to read
but now I'm too confused.