Here's how to buy books from the Apple Books app:
On your iPhone, iPad, or iPod touch:
1. Open the Books app.
2. Tap the "Browse" tab.
3. Search for the book you want using the search bar. You can also browse by category or collection.
4. Tap the book cover to view its details.
5. Tap the "Buy" button to purchase the book.
6. Enter your Apple ID password to confirm your purchase.
On your Mac:
1. Open the Books app.
2. Click the "Store" tab.
3. Search for the book you want using the search bar. You can also browse by category or collection.
4. Click the book cover to view its details.
5. Click the "Buy" button to purchase the book.
6. Enter your Apple ID password to confirm your purchase.
You can also purchase books from the Apple Books website:
1. Go to the Apple Books website (books.apple.com).
2. Search for the book you want using the search bar. You can also browse by category or collection.
3. Click the book cover to view its details.
4. Click the "Buy" button to purchase the book.
5. Enter your Apple ID password to confirm your purchase.
Once you've purchased a book, it will be added to your library and you can access it on any of your Apple devices that are signed in with your Apple ID.