The East Room is an event and reception room in the Executive Residence, which is a building of the White House complex, the home of the president of the United States. The East Room is the largest room in the Executive Residence; it is used for dances, receptions, press conferences, ceremonies, concerts, and banquets. The East Room was one of the last rooms to be finished and decorated, and it has undergone substantial redecoration over the past two centuries. Since 1964, the Committee for the Preservation of the White House has, by executive order, advised the president of the United States and first lady on the decor, preservation, and conservation of the East Room and other public rooms at the White House.