There's state-level law saying it's illegal to own or read some books on this list? Or just that it's illegal for school libraries to stock it and/or include it in curricula?
>There's state-level law saying it's illegal to own or read some books on this list?
Sorry, I'll edit my comment to be more clear. It is illegal for school libraries to stock it, even if they (teachers, the district, the parents, etc.) want it to be carried.
As a reminder for readers, the title of the article contains "in U.S. schools". It is probably a safe assumption to use that context for the comments in this thread.