I wanted to purchase the NIVAC Proverbs volume, and I knew that I had bought individual OT volumes in the past, but when I searched "NIVAC Proverbs" on the website, it only brought up the sets that include that volume. This led me to believe that it was no longer available individually. I then searched "nivac", which only brought up the sets and the individual New Testament volumes.
It wasn't until I searched for the author that I found it. I have also found that if I search "niv application commentary" it will include the OT volumes individually.
It is a minor issue, but it almost stopped me from purchasing it.
