Where are the Act 2 lore books?
I'm having some trouble finding a lore book in Act II - Hunter's Journal Part 2. It's not in my lore list either.
Which zone is this particular book found in?
The order you find these journals depends on the order you visit the locations in Act 2, but the 6 journals can be found in stachels in Hidden Aqueducts, Forgetten Ruins, Vault of the Assassin, Cave of the Betrayer and in the Archives of Zoltun Kulle.
I would start at the Aqueducts and start moving forward, I was able to retrieve them all with little difficulty.
I found it in a corridor of the Ancient Waterway during the Act II quest Blood and Sand. This is the same quest that unlocks the Jeweler.