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Nielsen Bookscan collect that data but you have to licence it, alternatively you could get the data from amazon.
by ig1 16y ago
Nielsen Bookscan collect that data but you have to licence it, alternatively you could get the data from amazon.
- jeromec 16y agoThanks for the tip about Bookscan! According to Wikipedia BookScan's US Consumer Market Panel currently covers approximately 75% of retail sales. That's pretty wide coverage, which is just what I had in mind. Amazon had occurred to me, but I didn't think they would have a large enough percent of total sales.