Jason5, I see that you get a lot of awesome sketches with your signed books. Do you ask for them in your LORs or do the artists just add them?

Hey guys, Just wanted to say that I've been a long time follower of this thread and really like all the work you've been doing. I'm definitely going to send some thing out to people. I was wondering though, I am heading to the Boston Comic Con this weekend, and I was wondering if anybody has any tip...