Honestly, I love hearing that the fundies have their panties all in a bunch over some book for kids/teens/YA. Gets me every time! It's why I picked up Harry Potter.
I completely missed the first book coming out but when Book 2 was due to be released I heard 2 stories: the first about how kids were lining up outside bookstores for a midnight release (of a BOOK! Not a video game or a movie but a BOOK!) and the 2nd about how the fundies were all a flutter about how dangerous and satanic, or whatever they were claiming these books to be, were. Combine kids lining up with religious wackos and it MUST be a good book! So, as soon as I finished grad school (because there was no elective reading at that point in my studies) a few months later I went to the library and got the first book. I've read all of them now and I can't say I see one potentially-damaging thing about them. I don't see them teaching witchcraft or devil worship or...whatever...I see them focusing on the power of friendship and the triumph of good over evil. Oh my what terrible lessons for a young person to learn!
The next time I remember picking up a book specifically because some religious group was calling for its ban was The Golden Compas from the His Dark Materials series (I read that entire series as well).
I believe the outrage over these books had to do with them supposedly being anti-catholic-church or some such nonsense. Again, what I got from them was the same as from the HP series...power of friendship, good over evil.
Maybe it's because I don't spend my time looking for subversive messages in books or maybe it's because I don't think the world is out to persecute me or my beliefs by way of literature but I never seem to see the controversy in these (and other) books. I'm glad when the religio-fascists go all crazy over a book because it usually leads to me finding good reading material :)
What controversial books or books about controversial topics have you read?