From BBC news:
"A book about Chinese history banned in China has gone on sale in Hong Kong.
A Hong Kong-based publisher, Bao Pu, was able to release the book because of Hong Kong's guaranteed rights of freedom of the press and expression.
The mainland academic who wrote the book, Xiao Jiansheng, spent 20 years researching and writing the critical look at China's past.
Now he is being watched ahead of Beijing's celebrations of 60 years of communist party rule this week."
Anyone else want to ask me why I live in Hong Kong and not China?