NIGHTS WITH THE NIGHTBORNE by Una Wintern.
<You unroll the treatise.>
This scroll appears to be a periodical release smuggled out of Suramar. It is written in a breathlessly gossipy style and has numerous examples of a Nightborne fashion detailed and diagramed.
There is even a section for adolescent elves that is stridently political and well written. It is a sharp contrast to the "grown-up" section.