You'll need CB Field Groups addon for that. First create all the fields the field group should contain. So your ISBN, publisher, format, length, etc.. fields. Next create a Field Group field and select those fields book related fields to be used in the field group. That should be all you need to do. They can now create repeating groups of fields using that field group field.
Kyle (Krileon) Community Builder Team Member Before posting on forums:
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