The Top Ten Challenged Books of 2012 list...
It is as follows:
1. The Adventures of Captain Underpants, by Dav Pilkey. Reasons: Offensive language, unsuited for age group
2. The Absolutely True Diary of a Part-Time Indian, by Sherman Alexie. Reasons: Offensive language, racism, sexually explicit, unsuited for age group
3. Thirteen Reasons Why, by Jay Asher. Reasons: Drugs/alcohol/smoking, sexually explicit, suicide, unsuited for age group
4. Fifty Shades of Grey, by E. L. James. Reasons: Offensive language, sexually explicit
5. And Tango Makes Three, by Peter Parnell and Justin Richardson. Reasons: Homosexuality, unsuited for age group
6. The Kite Runner, by Khaled Hosseini. Reasons: Homosexuality, offensive language, religious viewpoint, sexually explicit
7. Looking for Alaska, by John Green. Reasons: Offensive language, sexually explicit, unsuited for age group
8. Scary Stories (series), by Alvin Schwartz Reasons: Unsuited for age group, violence
9. The Glass Castle, by Jeanette Walls Reasons: Offensive language, sexually explicit
10. Beloved, by Toni Morrison Reasons: Sexually explicit, religious viewpoint, violence
(via EW)