My knowledge of alchemy is vast.  It is, however, general in nature.  If you wish to specialize, you will have to find others who have narrower fields of study.$B$BIf you wish to specialize in potion creation, I would recommend that you seek the help of Lauranna Thar'well of the Cenarion Expedition.$B$BHer knowledge of plants will allow you to make the most of your raw materials.  Look for her in Zangarmarsh and tell her I sent you to her.