Amazon is discouraging customers from buying books from the publisher Hachette as part of its hardball tactics to negotiate a disputed deal.
This week, Amazon stopped selling certain titles from Hachette books including J.K. Rowling's latest detective novel, The Silkworm and the paperback edition of Brad Stone's The Everything Store: Jeff Bezos and the Age of Amazon among others.
Both of these books are listed as "currently unavailable" on the Amazon website.