Add items to Books in Apple Configurator 2
You can create the following types of output and add them to the Books app on iPhone and iPad devices:
iBooks Author books
Note: You can’t use Apple Configurator 2 to add books purchased through Apple School Manager or Apple Business Manager to devices.
In Apple Configurator 2 , select one or more devices the iBooks Author books, EPUBs, or PDFs will be copied to, then do one of the following:
Click Add in the toolbar, then select Documents.
Choose Actions > Add > Documents.
Control-click the selected devices, then select Add > Documents.
Select the Books app.
Choose the documents, then click Add.