A distribution represents the event of sending a group of assets to a specific wholesaler/distributor. To determine if a specific product format (e.g. a PDF ebook) of a specific product (e.g., I, Q: The Windy City) has been distributed, follow the procedure below.
Visit the product page, then scroll to the bottom of the page where it lists the associated product formats.
Click the product format in question.
On the product format page, click the Distributions link in the right sidebar.
View the associated distributions.
You can further filter the distributions by specifying a specific Channel in the search form at the top of the page. In the example below, we're viewing the distributions of the Windy City title to Follett.