How to Visit the Mirror Universe

NEW BUSINESS!

A while back I was contacted by a reader in the UK who was working with a new website that sells soccer (or football) related t-shirts. They wanted to know if I’d like to design a shirt for them. I replied that I know next to nothing about American football, and even less about FIFA. Indeed, I had only one idea for a shirt, which I told them (thinking it would demonstrate that I’m not the guy for this job). Instead they wrote back that they liked the idea. I was as surprised as anyone.

The shirt’s available for purchase now. I think this one's UK only (turnabout is fair play). If you have any ideas for a soccer related shirt, they’re all ears.

OLD BUSINESS!

NOTE: A WINNER HAS BEEN SELECTED! THANKS TO ALL WHO ENTERED!

I promised a book contest, and here it is. I will ask a question. You will post an answer to said question in the comments section of this comic ("How to Visit the Mirror Universe"). The answer need not be correct. Heck, you don’t NEED to answer the question at all! Please do leave an e-mail address though. A commenter will be chosen at random to win a signed copy of my third book, “The Curse of the Masking Tape Mummy” (which is available for sale now).

There have been several questions about the books on my bookshelf, so here’s a clear shot of them.

Now the question. Which four books on this shelf exist because of John Hodgman?

DISCUSS!! The winning comment will be chosen at random on the morning of Thursday, February 9^th.