Buckingham Palace is a symbol and home of the British monarchy, an art gallery, and a tourist attraction. Behind the gilded railings and gates that were completed by the Bromsgrove Guild in 1911 and Webb's famous façade, which has been described in a book published by the Royal Collection Trust as looking "like everybody's idea of a palace", is not only a weekday home of Elizabeth II and Prince Philip but also the London residence of the Duke of York and the Earl and Countess of Wessex. The palace also houses their offices, as well as those of the Princess Royal and Princess Alexandra, and is the workplace of more than 800 people. Every year, some 50,000 invited guests are entertained at garden parties, receptions, audiences, and banquets. Three garden parties are held in the summer, usually in July. The forecourt of Buckingham Palace is used for the Changing of the Guard, a major ceremony and tourist attraction (daily from April to July; every other day in other months).