For those who have bought the story about it being a mistake, a glitch or a hacker causing problems in the Amazon search engines, I suggest you read this: Amazon’s Glitch Myth Debunked
My non-fiction titles appear to have their rankings back but are still missing all the reviews left.
I am not just concerned over non-fiction books that have been “accidentally” labelled as “adult.” I believe strongly that no censorship should be allowed. The deranking of adult selections is censorship. I have no trouble with them being marked as “adult,” but being removed from the fair selection, review, and ranking system is absolutely unacceptable.
Write Amazon, defend your right to read what you want.