Apple offers free books and audiobooks to U.S. users

Apple Books yesterday sent out a push notification to U.S. users highlighting free books and audiobooks available to users for a limited time only.
Apple Books gives iPhone and iPad users a beautiful and easy way to discover and enjoy books and audiobooks.
Frank McShan for MacRumors:The push notification reads:
Enjoy a good book, on usExplore free books, read-alongs for kids, cozy mysteries, and audiobooks for the whole family.
Upon tapping on the notification, users are brought to the Free Book