Why are we all talking like corporate copyright lawyers or marketing ghouls, using these explicitly commercial terms 
I'm disappointed by the ease at which "IP" rolls off my tongue. I mean, most of the fiction and entertainment we surround ourselves with are more soulless corporate slop than art, but still
Reminder that intellectual property is a bullshit term used by corpos to control media production and peoples attitudes toward copyright.
https://www.gnu.org/philosophy/not-ipr.html
Continuing to use it makes you a lib. You can use terms like "series" "text" "artistic works" "trademarked brand" etc.