There are currently only three placements of T_Bk_SevenFamiliesTR_V1 in Narsis, and just one placement of T_Bk_SevenFamiliesTR_V2. These are excellent books on Hlaalu history which concern the seven families, which will probably be missed by players, particularly the second volume. In my opinion each of the seven families' manors should at least contain a copy of the book which concerns their own family. There is currently a copy of both volumes in the second family manor, but the first, sixth and seventh family manor lack any.