nIf all Harry Potter books ever sold were placed end to end, they would go around the equator 1.4 times.

nIf all the Harry Potter books ever sold were laid flat, they would cover the area of about 1,000 football pitches. Or they could be used to carpet Monaco 3.7 times.

nOn its first day of sale in the UK, Harry Potter and the Order of the Phoenix sold at a rate of 21 books per second. If all those books sold in the UK in the first day were stacked up, the pile would be 12 times higher than Mount Everest.

nIf one person were to read every Harry Potter book ever sold ? at a rate of one per day ? it would take them over 700,000 years to do so.

nThe total number of Harry Potter books ever sold is more than the populations of Britain, France, Germany and Italy combined.

Source: Bloomsbury.com