Imperial Style and DLC Zones

RisenEclipse

I am trying to find the Imperial Style motif book, and I know it drops rarely from containers from the base zones. But I don't know if it drops from DLC zones as well. Does anyone know if it does or not? I want to go for both the Imperial Motif and Greymoor furniture pattern drops at the same time lol

Varana

I found mine in Wrothgar. I think someone got one during a Sunspire run. Not sure about other DLC zones.

Ilsabet

I've gotten a couple from Psijic portals in Cyrodiil, if you're feeling daring.

Indigogo

I know it's not what you asked but cyro is a real hot spot I've found.
It's been a long while since I've seen a psjic portal in cyro (weird now I think about it) but for a while there I encountered them often and the drop rate was crazy high.
Found 5-6 books that way.

RisenEclipse

I might run into Cyro then. I DO need to also get the recipe for the Tortes in there, so maybe I will go do that first lol