On 18 February 2008 there was a special seminar in Bristol in honour of Clifford Cocks: his notes are here.
In July 2008 he visited Birmingham (U.K.), at a variety of meetings: his notes are here.
In September 2009 he attended the Heilbronn Symposium: his (incomplete) notes are here. The slides of his talk at SYNASC 2009 are here.
In July 2010 he also visited the Technical University of Munich for the International Symposium on Symbolic and Algebraic Computation ISSAC 2010: his (incomplete) notes are here.
In September 2010 he attended the Heilbronn Symposium: his (incomplete) notes are here.
In June 2011 he went to ISSAC 2011 in San Jose - he now knows the way there. His notes are here.
In July 2011 he visited Bertinoro (Italy), at a variety of meetings (he was the overall Programme Chair) under the portmanteau of `Conferences on Intelligent Computer Mathematics': his (incomplete) notes are here.
In September 2011 he visited Timisoara (Romania) to attend SYNASC 2011. Apart from being platform fodder, his (incomplete) notes are here. The slides of his talk are here.
In July 2012 he also went to ISSAC 2012 in Grenoble. His notes are here.
In September 2012 he visited Timisoara (Romania) to attend SYNASC 2012. His (incomplete) notes are here. The slides of his talk are here.