Apple Books Affiliate Program
Through the Apple Services Performance Partners affiliate program you can earn commissions on qualifying revenue. Link to iTunes content like books, audiobooks, music, and movies. If the customer uses your link to make a purchase, you receive the commission on your book sale and any other purchases that customer makes.
When creating links to your books, include the affiliate token to track the transactions you generate with your marketing.
If you have any questions about the Apple Services Performance Partners affiliate program, check out the FAQ.