And what about books critical of Christianity?

Via Daily Mail:

A publisher has refused to take on a Muslim Imam’s book that criticises Islam out of fear their offices will be attacked by religious extremists.

Imam Mohammad Tawhidi, from Adelaide, took to Facebook on Sunday to reveal his first book was rejected by a publisher because it could provoke violence among Islamic radicals.

‘They responded with an apology and informed me that they fear the company will be attacked by Islamic extremists if they publish my book,’ he said.

‘They were willing to publish it if I agreed to erase certain passages and reword a number of paragraphs.

‘I respect their feelings and concerns but I refuse to accept their requests.’

Imam Tawhidi, who has come under fire from hardline Muslims for condemning extremism and Sharia Law, said the rejection would not silence him.