Most of the Middletons got together this week for the launch of Pippa's first book Celebrate. The sister of Kate held the Halloween themed party at a bookshop in Chelsea and her parents and brother James were there to lend support. In the book, Pippa jokes about her fame saying, "It’s a bit startling to achieve global recognition before the age of 30 on account of your sister, your brother-in-law and your bottom." She made the most of her launch party by wearing four different ensembles including dresses by Stella McCartney and Roksanda Ilincic. You can shop Pippa's style below.