The world's biggest book fair in Frankfurt is used to seeing some big book launches, but none came larger than a six-by-nine-foot atlas unveiled on Wednesday. Australian publisher Gordon Cheers said the last book even close in size to his 128-page volume was the Klencke Atlas, produced in 1660 as a gift for Charles II of England. But that was about one-foot smaller than this, he said. This is the first time a book this size has ever been seen. Just to turn a page takes all his strength and the book took three hours to get into position for visitors to the Frankfurt Book Fair, which runs until Sunday.