See their site: www.zackcompany.com
Folks are often surprised I've never had an agent before--I blame it on the fact that I'm generally-speaking better at the *writing* aspect of writing than the *business* aspect. My representation search has thus taken a backseat to producing quality work, but now that I've signed with Andy, I'm confident that I'll soon be revealing more of said writing.
This pertains to both my WotC stuff and my own non-shared world work, and I hope it signals a chance to see more on the shelf with my name on it. :)
Cheers
pleased