There may be nothing new under the sun, but one of the reasons I so enjoy our guest Unshelved Book Clubs is that every cartoonist has a different take on the world. Today's guest strip is a great example. That green chalkboard is so simple and yet so perfect for a book about teaching! It comes to us from our good friend Jorge Cham.

We have a lot in common with Jorge. It goes without saying that we are similarly tall, handsome, intelligent, personable, and talented. And where Unshelved is set in a library, Piled Higher and Deeper is set at a grad school. Both strips are anchored by characters you'll recognize, in situations you'll either find familiar or get to know.

Increasingly we find that Unshelved fans are PhD fans and vice-versa, and that's why we were excited when Jorge agreed to share a booth with us at Comic Con International next week. If you're one of the 126,000 people lucky enough to have gotten a ticket before they sold out, we hope you'll come visit us both! Stay tuned for more information tomorrow about what we have planned there. And of course check out PhD and sign up for Jorge's free email delivery.

Our thanks to this week's sponsor, Anat Baniel, author of Move Into Life: The Nine Essentials For Lifelong Vitality. Click for more information about the book, the Baniel method, and the author's book tour.