Reporting are book distributors and book publishers, Amazon.com sells more than its Kindle e-book reading device electronic book in paperback and hardcover editions printed together, helping the book publisher business to see its strongest growth in more than a decade, the online retailer said on Thursday.

The publishers news that Amazon has sold more than three times as many Kindle books so far this year compared to the same period in 2010 became the Association of American Publishers reports that the U.S. e-book revenues had grown 146 per cent in March compared to the same month of 'previous year.

Amazon has just released the unit sales data rather than comparable poetry book publishers sales, and Kindle versions typically sell at prices below print titles.

However, based on information that can be a leader in expanding its market share for electronic books, after the release of five weeks ago, cutting the price of the Kindle is $ 114 for christian book publishers customers willing to accept sponsorship and advertising screensaver .

The editors will meet in New York next week at the annual Book Expo America, believes that Amazon and other e-bookstores are likely to benefit from problems at borders, brick second U.S. retailer of books and mortar, including the store closures due to his decision to seek the protection of Chapter 11 bankruptcy in February. Frontiers of difficulties in obtaining new shares, combined with severe weather and consumers to load new e-book readers after the Christmas break briefly improved revenue ebook pocket adult higher in January and February, which makes the largest single industry.

The figures for March showed the industry to return to less seasonally asymmetric model, with the revenue of e-book $ 69 million in back pocket for adults, which fell 8 percent to $ 116m, and hardbacks adults, with a maximum of 6 per cent of U.S. $ 96.6m.

The growth of e-books is not enough to solve the entire book industry in the United States, where sales have fallen by the beginning of 2.5 percent per year of $ 1.74bn.

However, the number of RR Bowker - the book distributors - this week suggest that traditional publishers to make titles more than 5 percent last year, and non-traditional titles, such as copies of public domain titles have increased by 169 per percent.

The only exception is the category of religious books that were 27.4 percent jump in sales in March, after growth slowed in January and February.

PAA was no immediate explanation for the christian book publishing increase.

In Britain, where Amazon launched its Kindle Store a year ago, said the company had sold 242 ebooks for 100 bound books since April 1, although it has experienced sales growth hardback.

Amazon began as an online seller of books printed 15 years ago in the United States, and launched Kindle in November 2007.

Christian book publishers and senator Guy Barnett and the Australian Christian Lobby have urged the Federal Government to rule out allowing same-sex couples to marry.

Commission president Catherine Branson suggested repealing the Marriage Act and replacing it with another form of relationship recognition legislation.

"We are not, pardon the pun, particularly wedded to the Marriage Act," she told the hearing, noting the primary concern was removing discrimination.

ACL director Jim Wallace says the commission's and christian book publisher comments perpetuated the myth that denying homosexuals marriage was an issue of discrimination.

"Discrimination was removed when homosexual couples were given the same entitlements as opposite-sex de facto couples," he said in a statement, referring to 2008 federal legislative reforms.

Nobody, including "rights fundamentalists" at the commission, could present an argument for discrimination following these changes, he said.

"They should instead be seeking to protect the right of people of faith."

Senator Barnett said the Labor Party supported the definition of marriage as being between a man and a woman.

"I call on the Attorney-General to rule out the option of repealing the Marriage Act," he said in a statement.

Christian book publishers and Federal MPs have been asked to canvass constituents' views on gay marriage, after a parliamentary motion from the Australian Greens.

The contentious issue will also be debated at the Australian Labor Party national conference in December.

George W Bush has had to call off a trip to Switzerland next weekend amid planned book publishers protests by human rights groups over the treatment of detainees at Guantánamo Bay and the threat of a warrant for his arrest.

Christian book publishers, a spokesman for the former US president, confirmed the move in an email to the Associated Press. "We regret that the speech has been cancelled," he said. "President Bush was looking forward to speaking about freedom and offering reflections from his time in office."

The visit would have been Bush's first to Europe since he admitted in his autobiography, Decision Points, in November that he had authorised the use of waterboarding – simulated drowning – on detainees at Guantánamo accused of links with al-Qaida. Whether out of concern over the protests or the arrest warrant, it is an extraordinary development for a former US president to have his travel plans curtailed in this way, and amounts to a victory for human rights campaigners.

Since the arrest of the late Chilean dictator Augusto Pinochet in London in 1998, international leaders can no longer be confident of immunity. Israeli politicians have cancelled trips to London and elsewhere for fear of arrest warrants.

Bush had been due to deliver a speech at a dinner in Geneva organised by the United Israel Appeal, a US-based organisation that helps Jews move to Israel. Robert Equey, the organisation's lawyer, was quoted by the Swiss daily Tribune de Genève at the weekend saying that the decision to abandon the speech was because of concern that the protests might lead to violence, not fear of an arrest warrant.

"The calls to demonstrate were sliding into dangerous terrain," Equey said. "The organisers claimed to be able to maintain order, but warned they could not be held responsible for any outbursts." The threat of an arrest warrant had not been a factor in the decision. The Centre for Constitutional Rights, the human rights group seeking an arrest warrant, said: "Whatever Bush or his hosts say, we have no doubt he cancelled his trip to avoid our case."

Human rights campaigners said they would seek arrest book publisher warrants wherever Bush planned to travel outside the US.

Folco Galli, a spokesman for the Swiss justice ministry, told the Associated Press that the department's initial assessment was that Bush would have enjoyed immunity from prosecution for any actions taken while in office.

But Amnesty International said today that it had sent a detailed factual and legal analysis to Swiss prosecutors, claiming there was sufficient information to open a criminal investigation.

"Such an investigation would be mandatory under Switzerland's international obligations if President Bush entered the country," Amnesty said.

It added: "Anywhere in the world that he travels, President Bush could face investigation and potential prosecution for his responsibility for torture and other crimes in international law, particularly in any of the 147 countries that are party to the UN convention against torture."

Organisers of the protest had called on participants to bring a shoe, commemorating the Iraqi journalist who threw one at Bush during a 2008 press conference in Baghdad, to a rally outside the hotel where Bush was due to speak.

Human rights groups had planned to submit a 2,500-page case against Bush in Geneva tomorrow over the treatment of detainees at Guantánamo. The Bush administration claims that waterboarding does not amount to torture, but human rights organisations and the Obama administration have said it does.

The document will no longer be filed in court but will be released at a media event. It focuses on two former Guantánamo Bay detainees, Majid Khan and former al-Jazeera correspondent Sami el-Hajj. Speaking before the cancellation of the visit, lawyers for the two said the trip was the first opportunity for the former president to face the legal consequences of authorising waterboarding and other techniques.

"What we have in Switzerland is a Pinochet opportunity," said Gavin Sullivan, lawyer for the European Centre for Constitutional and Human Rights, backing the claim together with the US-based Centre for Constitutional Rights.

"Bush enjoys no immunity from prosecution. As head of state he authorised and childrens book publishers condoned acts of torture, and the law is clear – where a person has been responsible for torture, all states have an obligation under international law to open an investigation and prosecute." He added: "Bush will be pursued wherever he goes as a war criminal and torturer."

Legal proceedings under way in Spain accuse White House legal advisers, known as the Bush Six, of criminal wrongdoing for advising that the techniques were legal.

"Nobody – from those who administered the practices to those at the top of the chain of command – is under a shield of absolute immunity for the practices of secret detention, extraordinary rendition and torture," said Martin Scheinin, UN special rapporteur on human rights and professor of christian publishers public international law at the European University Institute. "Legally this case is quite clear. Bush does not enjoy immunity as a former head of state, and he has command responsibility for the decisions that were taken."