Hi KDJJ13,
welcome to the Apple (user-to-user) Community.
Wondering which Mac model (year), and which MacOS version you are using.
(Eg: older Mac OS versions may not have the newest Books app)
Maybe this Apple support article will help:
Apple Support article: Gift apps, music, movies and more from Apple
Eg: says:
Gifts are billed to your payment method, not to your Apple Account balance
article also says:
If there's an issue when you send a gift
- The recipient of your gift must have an Apple ID in your country or region. For example, if you're in the United States, you can't send a gift to a friend who lives in Australia.
- In some regions, you can't send gifts. Store availability also varies by country or region. Learn what's available in your country or region.
- If you use Family Sharing and Ask To Buy is turned on for your account, you can't purchase gifts.
- You can't gift individual songs on an iPhone or iPad. To send a song as a gift, use your Mac or PC.
- You can't send apps, TV programs or films as a gift on a Mac or PC. To gift those items, use an iPhone or iPad.
- You can't send a free app or item as a gift. But you can tap the Share button
or the arrow button
to share a link to the app or item.
Hope something here, (or in the article) will help:
All the best :-)