For those who did not know, Artistry and Lore are additional background skills. Both are INT based though Lore is only usable when you train it.<br/><br/>Artistry is similar to Craft, but different enough that you can do other things with it.<br/><br/>The same holds true with Lore compared to knowledge (X) skills. They are used similarly but what you would use each for is totally different. Knowledge is a more broad topic where Lore is fairly specific. You would use Knowledge to get information about Giants in general, but Lore would be needed to get information about Frost Giants specifically.