Appears on the list of booksbanned by Opus Dei.
"Challenged as required reading for a Page High School International Baccalaureate class and as optional reading for Advanced Placement reading courses at Grimsley High School in Guilford County, N.C. (2012) because the book is 'sexually explicit, violently graphic and morally corrupt.'" (Source: "Books Challenged or Banned: 2012-2013," www.ila.org (PDF))