Hey Switched at Birth fans! How much are you loving this season? In order to celebrate the fall season and Kathryn's new original book (which you can purchase a copy of in real life!) OK! Magazine along with the amazing cast attended a book release party at glamorous venue, The Library in Hollywood. Keep clicking through this gallery to see more fab pics of the cast at the party!

Find out how to purchase the Switched at Birth book now!

Watch ALL NEW episodes of Switched at Birth Mondays at 8/7c!