And that's just original imprints; it doesn't list things like Audible, which Amazon owns, and which are THE major audiobook publisher, but almost always published secondary to a print publication rather than original.
And that's not including Amazon's multiple self-publishing options, including the Kindle Direct program.
They have - aside from Kindle Direct Publishing, Amazon has their own imprints that do traditional publishing. Many bookstores refuse to stock those books though.
They have dipped their toe in the water with Singles. In general I'd expect their approach might be to continue to expand their relationship with self-published authors who their data shows has promise. With big-name authors they're just on the same playing field as the other publishers.
