"I Know Why the Caged Bird Sings", by Maya Angelou - challenged for profanity, drug abuse, being sexually explicit, and torture.
"Beloved", by Toni Morrison - challenged for infanticide, bestiality, gang rape.
"The Hunger Games", by Suzanne Collins - challenged for violence, anti-ethnic ideas, anti-family plot, insensitive characters, profane language, Satanic beliefs, harmful morality and negative ideas.
"The Kite Runner", by Khaled Hosseini - challenged for offensive language and violence.
"A Stolen Life", by Jaycee Dugard - challenged for drugs/alcohol/smoking, offensive language, and sexually explicit content.
"The Diary of a Young Girl", by Anne Frank - challenged for being 'too depressing'.
"Bury my Heart at Wounded Knee", by Dee Brown - challenged for being 'slanted' and possibly controversial.
"Blubber", by Judy Blume - challenged because 'the bullies are never punished'.
"The Perks of Being a Wallflower", by Stepehn Chbosky - challenged for drugs/alcohol/smoking, homosexuality, offensive language, sexually explicit content, being unsuited for age group, date rape and masturbation.
"The Librarian of Basra: a true story from Iraq", by Jeanette Winter - challenged for promoting a religion that is not Christianity, and for being "too violent for children".