Christies, a worldwide art auctioneer held its eight series of sales in Dubai between 25 to 28 April. Christies has led the Middle East auction landscape since conducting its first sale in May 2006. Christies said since it had opened in Dubai, the spending power of Middle Eastern clients at the companys international sale sites had increased by more than 400 percent. After London, New York and Hong Kong, Dubai is one of Christies most important sale centers.