In this "authorized edition", Corey and Earl J. play Show and Tell. I'm not one to guess what exactly this game of Show and Tell encompasses, but Earl Jr. clearly is amused and satisfied, while Corey is looking back over his shoulder as if he's been caught showing something that he shouldn't have. It could be anything: mom's bra, a condom he found in his late father's nightstand drawer, a photo of Earl Jr.'s parents at a Klan rally...anything. I don't know, but there's just something creepy about this bookcover.
After doing a bit of research, I discovered that the book is about this: "Corey decides to take his good friend Earl to school for his Show and Tell". Okay, that is pretty creepy, but kind of cute, I guess.