at Queen Elizabeth II Conference Centre on 24 Sep 2014 – 26 Sep 2014

at Westin Hotel on 9 Dec 2013 – 14 Dec 2013

at Glaziers Hall on 18 Sep 2013 – 20 Sep 2013

at Oregon Convention Center on 19 May 2013 – 24 May 2013

at The Brewery on 12 Sep 2012 – 14 Sep 2012

at Olympia Conference Centre, London, UK on 27 Feb 2009 – 28 Feb 2009