Guild Wars 2

I can’t find any of them but one which I can’t remember where I get from (maybe from LW). And from what I found after a brief look at tp, it seems that the recipe books themselves either uberly hard to get, or they’re not dropped from any place.

anyone find them from other than LW yet?

https://wiki.guildwars2.com/wiki/Crystalline_Ore_Collector#vendor28

the vendor appears after the last event.