In the core there’s an entry for Sin City: Hell and Back with an ISBN 9781569714812 and the cover below. Looking at the back cover attached to it, it’s clear that the ISBN does not match the one in the entry. I believe this is actually the TPB listed here: Sin City: Hell and Back TPB :: Profile :: Dark Horse Comics
You can get a better sense of the full set of properties from the photos on this eBay entry: https://www.ebay.com/itm/284154623023. That also makes it clear it’s the TPB as well. It’s also listed as the TPB here: Sin City: Hell And Back – Stuart Ng Books.
But there are places that list it as “book 7” (like this Amazon entry: Sin City: Hell and Back (Book 7): Miller, Frank, Miller, Frank: 9781569714812: Amazon.com: Books), and that fooled me for a bit thinking is was a very unusual variant I was somehow missing. I believe the ISBN needs fixing and it should be designated as a TPB. Thanks.
