Fan Art...
So far, no fan art has been specifically submitted. However, Agi Vega from Deviantart does some great Nathaniel/Kitty art that I've seen-check it out here. Anothr great artist on deviantart is Rinian.

The Bartimaeus Trilogy Fan Art club on Deviant Art: here.

If you would like to submit art, please e-mail it to me.