Wiley sent a manuscript to Apple and Apple, in turn, demanded that Wiley not publish. When Wiley said it would bring the book to market against Apple's wishes, Apple decided to stop selling other Wiley titles.
Technology Review's David Appell calls Apple's moves to suppress the unauthorized story of Steve Jobs, nothing short of a "dumb move."
Apple is only fueling demand for the book and, in its retaliatory moves against Wiley, actually losing out on money it would make by selling the other books as well.