App Store Confidential, the recently released German-language book written by a former App Store manager, is seemingly so confidential that even Apple won’t reveal the bits it thinks are classified, according to legal counsel representing the book’s publisher.

The author of App Store Confidential says he is “surprised” by Apple’s attempt to halt sales of the book, and by the company’s allegations that the German-language memoir reveals trade secrets.

Tom Sadowski, a former App Store manager who worked at Apple from 2009 through 2019, told Cult of Mac he’s not sure which parts of his new book Cupertino objects to. “I’d love to [know], but unfortunately I don’t,” he said. “I am accused of betrayal of secrets without specifying it more precisely.”

Call it the Streisand effect if you want, but the book written by a former App Store manager that Apple attempted to ban has risen to the number one spot on Amazon’s book charts in the writer’s native country.

Apple lawyers have tried to lean on the publishers to destroy all copies of the book. They claim that it contains inside secrets.

Unsurprisingly, this has sparked a whole lot of interest in a book that — by its own admission — shares only publicly available details about how Apple approves third-party apps in Germany.

Apple is suing former German App Store manager Tom Sadowski and his publisher over App Store Confidential, a new book that reveals “business secrets” Apple says Sadowski wasn’t legally allowed to disclose.

Cupertino’s lawyers are asking Sadowski and publisher Murmann Verlag to destroy all manuscripts of the German-language book, and to recall any copies currently in circulation. Apple says the book contains information that is of “considerable economic value” to the company.