iBooks Tip: Offer a sneak peek of the book during the pre-order period.
April 12, 2017
Give readers a sneak peek while the book is available for pre-order on iBooks.
To set up a pre-order with a custom sample, follow these steps:
- Sign in to iTunes Producer and click Choose.
- Fill out the information in the Details and Price panes then add the custom sample to the right-hand side of the Files pane.
- Click Submit.

You can replace this custom sample at any time, even after the book released.