is a plain‑text way of getting that information across to the viewer of the map. The
agency that commissioned the map or is in some other way involved in the map’s
reason for being can be signified more prominently than the authorship information,
as long as the author’s name is included somewhere on the layout. Indeed, many
times the sponsoring agency’s name winds up in the title of the layout, although I do
not consider this a best practice (see the Title section).