Because it’s smutty or poorly written?

Fifty shades of Grey has been pulled from another US library:

“It’s quite simple — it doesn’t meet our selection criteria,” said Cathy Schweinsberg, library services director.

“Nobody asked us to take it off the shelves. But we bought some copies before we realized what it was. We looked at it, because it’s been called ‘mommy porn’ and ‘soft porn.’ We don’t collect porn.”

But…

Copies of “The Complete Kama Sutra” are available through the Cocoa Beach, Mims/Scottsmoor, Palm Bay and Titusville branches. Also up for grabs countywide: “Fanny Hill,” “Lady Chatterley’s Lover,” “Fear of Flying,” “Tropic of Cancer” and “Lolita.”

So what makes “Fifty Shades of Grey” different?

“I think because those other books were written years ago and became classics because of the quality of the writing,” Schweinsberg said. “This is not a classic.”

So it’s been pulled because it’s porn? Or because it’s considered too poorly written to one day qualify as a “classic”?