Group/order pages by a category?

Hi all, wondering if it’s possible to group static pages by theme/category. If you have a minute, look here:

http://sherlock.jamesbickers.com

What I’m doing is building the complete Sherlock Holmes library in an easy-to-read format (the “Reading Room” section on the right), using a page for each story. But I would love to be able to sub-divide them by the name of the book they appeared in, and then put those books in chronological order in the list.

Anybody know how to do this?

Thanks in advance,
James