https://techcrunch.com/2018/08/28/amazons-childrens-book-subscription-prime-book-box-opens-to-all-in-the-u-s/

Amazon today publicly launched a new perk for Prime members with young children, with the broad release of the new subscription-based “Prime Book Box” service. The $22.99 per box offering ships Prime members in the U.S. a curated selection of kids’ books every 1, 2 or 3 months, at up to 35% off the list price, Amazon says. The service was first launched in May, but was only available in an invite-only basis at that time.

Members will receive 2 hardcover books or 4 board books per box, depending on the child’s age.