A Brand is a representation of your publication: it defines your newspaper, your magazine, your catalog, and so on.
Example: A Brand is named 'My Newspaper', 'My Magazine', and so on.
A Brand contains one or more published issues, such as each daily newspaper, each monthly magazine, each yearly report, and so on.
In hierarchical form, Brands and Issues can be seen as follows:
> My Magazine
> January issue
> February issue
> March issue