Book excerpt: Dr. Guinea Pig George really does think he's a doctor-and it never occurs to him that he might be wrong! Follow clever George through a very unexpected day as he navigates potential peril, takes advantage of a peculiar situation, and comes out on top. These days, it's more important than ever for all of us, children and adults, to believe in ourselves, even if what we aspire to seems out of reach at first glance. If you don't take a chance, you'll never know what might have been.