Boo is ready for his close-up! The famous 5-year-old pup and Internet star visited the TIME.com and TIME For Kids offices in New York City, on September 8, 2011. Look through the slideshow above to see what Boo was up to that day. Click here to see a video.

Boo was in town to promote his new book, Boo: The Life of the World's Cutest Dog, in stores now. It was written by Boo's owner, J.H. Lee (a pen name). Fans of Boo can get an inside peak at the little pomeranian's daily adventures through the photos in the book. "We tried to include an array of pictures that show his personality," Lee told TFK. "I like the ones of Boo outside. That's where he’s the happiest."

Check it out! Boo is featured in the September 9, 2011, issue of TFK, and he's wearing the same shirt. It's his favorite. "He's definitely quirky, because he loves wearing clothes," Lee reveals. "Whenever I pull out his T-shirts, he gets really excited. He'll run to me and put his head down so I can put it on him." Except on Naked Wednesdays, of course.

You know you've made it when you have your own cardboard cut-out. When Lee first started posting pictures of the fluffy pooch on the Internet, they were meant only for her friends and family. Now, Boo has more than a million fans worldwide. "The fact that he looks like a stuffed animal intrigues people," says Lee. "A lot of his fans in the beginning would spend their time trying to figure out if he was real!" 

Would you recognize Boo on the streets of New York? This fan sure did. Boo is known for his teddy-bear haircut. When he was a puppy, he had surgery on his back leg. The vets shaved the back half of his body for the operation, and the fur never grew back the same. That was the beginning of his signature look.

Boo meets a new, very sleepy puppy pal in New York City's Times Square. One of Boo's favorite activities is lounging in his doughnut bed at home. He also loves playing with his big brother, Buddy. "Boo follows him around wherever he goes," says Lee.

No one can resist snapping a photo of the fuzzy-headed pup. Lee says Boo has always gotten a lot of attention, even before he became well-known. Does he know that he's famous? "People always stop and ask if they can take a picture of him, but I don’t think he has any idea that he’s a celebrity," she says.  

Boo checks out the New York City subway service. He loves going on trips, and jumps right into his carrier without needing to be asked.

Maybe we'll grab a taxi instead. If Boo could speak, what would he say to his fans? “He would probably say, ‘Thanks!'” says Lee. "He just loves people. He can’t walk by a person without running straight towards them. He loves all of the attention he's been getting." We love you too, Boo.