It's more that the book market is not dominated by only a few big conglomerates.
Yes it is, at least 80% of the book market in the US is controlled by 5 companies: Macmillan, Simon & Schuster, Penguin, Hachette, and HarperCollins.
alt Hacker News
Yes it is, at least 80% of the book market in the US is controlled by 5 companies: Macmillan, Simon & Schuster, Penguin, Hachette, and HarperCollins.