In a tweet she shared a photo of Galbraith’s autograph.
It took Robert a whole weekend to perfect that signature. (I let him practise at my kitchen table.) pic.twitter.com/Nlnran2wzy
— J.K. Rowling (@jk_rowling) June 18, 2014
She also thanked her fans and tweeted back at those that sent her questions. (Via Buzzfeed.com).