Five books you can't buy at Waterstones.
Unknown Soldiers: How Terrorism Transformed the Modern World by Matthew Carr - published by Profile Books in August 2006; withdrawn from sale and pulped following legal action in January 2007.
Alms for Jihad: Charities and Terrorism in the Islamic World by J Millard Burr and Robert O Collins - published by Cambridge University Press in April 2006; withdrawn from sale and pulped in August 2007
Reaping the Whirlwind: The Taliban Movement in Afghanistan by Michael Griffin - published by Pluto Press in 2001 and 2003; withdrawn and all unsold copies destroyed in March 2004.
Forbidden Truth by Jean-Charles Brisard, Guillaume Dasquié and Lucy Rounds - never formally published in Britain; withdrawn from all British outlets, including internet bookshops, in 2006.
Funding Evil: How Terrorism is Financed and How to Stop It by Rachel Ehrenfeld, published by Bonus Books in America in 2003 - never formally published in the UK, yet it became the subject of a libel suit here after 23 copies were bought by Britons via internet bookshops, and is now not available at all in the UK.