Quoted from "nkwala;539216"
I had the same problem...got to lvl 21 and had no shield form. Once I did the quest line starting with Hebron Shadoweave (30.7, 75.3), I was able to the get the skill from Logden Darkstove.
Quoted from "imthepope;539847"
I'm a 18/16 ch/r and whenever i talk to logden darkstove or hebron shadoweave neither of them give me a quest or say anything relating to spells and/or shield form at all :/