I have noticed that my owner field in the detail view is displayed only in those records that have been fetched from Amazon. The rest of records (i.e. those with no image available) show title, categories, bookid, authors, ISNB, publisher, number of paes, language, rating and picture fields... but not the Owner.
How is it possible? Why the Book owner field is shown in the record detail view only if the record has been fetched?