1. The Adventures of Huckleberry Finn by Mark Twain (Samuel Clemens)
When good ole' Sammy wrote this, he didn't think using the N word or anything else he wrote would be a big deal (it wasn't at the time, but later people suddenly were upset). Even Louisa May Alcott (author of Little Women) decided to stick her nose in the air for other reasons. As quoted from TIME, she said "If Mr. Clemens [Twain's original name] cannot think of something better to tell our pure-minded lads and lasses he had best stop writing for them." First of all the fact that she thought "lads" and "lasses" were all pure-minded she was delusional. Kids know stuff (I was a kid once after all) and holding things back from kids can have consequences.
2. Lolita by Vladimir Nabokov
I don't know much about this other that it is really sexual and has something to do with pedophiles.
3. Catcher in the Rye by J.D. Salinger
A teenage boy who swears and likes prostitutes? Automatic uproar from the masses I suppose. Combining cuss words and sex is bound to have people crying foul.
4. Harry Potter Series by J.K. Rowling
A school that teaches witchcraft (& wizardry) to children (go Hogwarts!) can't be that bad. By simply reading the books you can see it is about good triumphing over evil. But some religious fanatics in Maine claimed these books promoted devil worship and wanted to have a book burning. Even though no devil worship is mentioned... in fact not even close. Hmmm, did they even read one of these books? I seriously doubt it.
5. The Anarchist Cookbook by William Powell
In 1971 Willy was just 19 and angry about the Vietnam War (in which he was drafted) when he wrote this. In 2000 even HE tried to keep it from print but no longer owned the rights.
6. I Know Why the Caged Bird Sings by Maya Angelou
Written in 1970, Maya discusses racism, sex (and most disturbingly being raped by her mother's boyfriend when she was 8). She wrote the truth and sometimes, people just can't handle the truth.
7. Candide by Voltaire
In a quote from the article, because I haven't read this: "This classic French satire lampoons all things sacred: armies, churches, philosophers, even the doctrine of optimism itself."
8. 1984 by George Orwell
"Written in 1949 by British author George Orwell while he lay dying of tuberculosis, the book chronicles the grim future of a society robbed of free will, privacy and truth." Wow, you go George.
9. The Satanic Verses by Salman Rushdie
10. Brave New World by Aldous Huxley