"Maus," the decades-old graphic novel about the effects of the Holocaust on a family, became an Amazon bestseller in recent days as part of a backlash to news that it was banned by a Tennessee school board in from its eighth-grade curriculum.

The McMinn County school board says it took that step. Jan. 10 because of a handful of curse words and other aspects of the Pulitzer Prize-winning book that it found upsetting, including "its depiction of violence and suicide." The board's decision was unanimous.

"The schoolboard could've checked with their book-banning predecessor, [Russia President] Vladimir Putin: he made the Russian edition of Maus illegal in 2015 (also with good intentions—banning swastikas) and the small publisher sold out immediately and has had to reprint repeatedly," Spiegelman wrote in an email.

Minutes of the McMinn school board meeting that led to the book being banned show that while some parents said they supported the idea of teaching about the Holocaust, they had problems with some profanity in the book. They also had an issue with an image showing a nude woman, who is Spiegelman's mother.

"We can teach them history and we can teach them graphic history," board member Mike Cochran said, according to minutes of the meeting. "We can tell them exactly what happened, but we don't need all the nakedness and all the other stuff."