Books Suffer from Potter Curse, Sales Tumble 17%

Unit sales of print books in the week ended Aug. 6, 2017, were down 17% from the similar week in 2016 at outlets that report to NPD BookScan. The decline was due entirely to the release last year at this time of J.K. Rowling’s Harry Potter and the Cursed Child, which sold about 2.5 million copies in its first week.