“Celebrate: A Year of British Festivities for Families and Friends.” That is the title of the home-entertaining book that will be written by Pippa Middleton, sister of the Duchess of Cambridge (aka Kate Middlton). The book, being published by Penguin, will be full of tips and tricks from Pippa, who’s family owns a party planning and events business. It will be full of what she calls “practical tips” for hosting British themed gatherings. The book will be out in October of this year.