Kristin Cavallari Book Signing in Laguna Beach

At the O.C. Register, "Former 'Laguna Beach' reality TV star Kristin Cavallari returns home for book signing."

And at Egotastic!, "Kristin Cavallari Sweater Puppies for Book Signing."

BONUS: Flashback, "Kristin Cavallari Super Tight in Body-Hugging Blue Dress for 'Good Morning America'."