Are you running out of hard drive capacity? Do you need to archive some important digital documents, photos, or music? This elegant external hard drive, reminiscent of a book, is the perfect solution. It takes no more space than a paperback book. Collect two or more and they nest neatly together like volumes on a shelf.cent of a book, is the perfect solution. It takes no more space than a paperback book. Collect two or more and they nest neatly together like volumes on a shelf.