According to ICv2, this covers 85% of the US trade print book market so it’s a pretty solid reflection of what’s being bought.
The ICv2 site has updated to reveal what the NPD BookScan data has pulled together to showcase what was selling in February in the bookstore, e-tailer, and more when it comes to graphic novels and manga.
Marvel Comics makes out well with this but it’s also the only series of theirs that’s charting as not even any Star Wars books ranked.