Designer Gillis Lundgren and his progenyIn 1979 Ikea introduced the Billy bookcase. In 2009, there are over 40 million Billy bookcases sprinkled throughout the world. It is the best selling bookcase in the history of mankind. They're still producing over 3 million a year. Bloomberg has even begun an index tracking the cost of Ikea’s standard Billy bookshelf in 38 countries (in case you're wondering, it is currently cheapest in the United Arab Emirates and the most expensive in Israel.)In the UK, to celebrate Billy's 30th anniversary Ikea released some rather cool limited edition bookcases and other goodies that cater...