<Tr> <Th> Published </Th> <Td> 26 June 1997--21 July 2007 (initial publication) </Td> </Tr> <Tr> <Th> Media type </Th> <Td> Print (hardback & paperback) Audiobook E-book (as of March 2012) </Td> </Tr> <Tr> <Th> No. of books </Th> <Td> 7 </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.pottermore.com </Td> </Tr>

How long is the total harry potter series
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