This is a Poison shop for rogues. This is every poison in the game. Now you don't have to make them you can just buy them... If you all want to make them as well check out my Alchemy Made Easier (Alchemy Shop) mod...

http://www.nexusmods.com/skyrim/mods/65244/?


The NPC is at the thieves guild in the front. She is a ex assassin just trying to start a new life as a thief...