Get the inside story on book sales.
Monitor the performance of ebook titles that you’re selling directly on Apple Books with sales reports and tools. Adjust your prices at any time to test how various price points affect sales.
Your book. Your price.
Monitor sales from the Apple Affiliate program.
If you’re in the Apple Affiliate program, you can monitor how much commission you earn every time you share an affiliate link with your fans and they go on to purchase your book, any other book, or other qualifying media.