First day at school 1955
With Josė Cassiolato in 1992
With Khalid Nadvi, Roberta Rabellotti, Peter Knorringa at Lago d'Orta 1996
With Luiza Bazan and Lizbeth Navas-Aleman in Porto Alegre 1998
Value Chain 'Summit', Bellagio 2000
Alumni Meeting in Tokyo 2001
Teaching at Fudan University, Shanghai 2006
ICRD Conference, Beijing 2006
With John Humphrey at Workshop in Beijing 2009
Visiting wind farm outside Copenhagen 2012
Participants of workshop on low carbon innovation paths 2013
With Ana Pueyo and Stephen Spratt at KenGen plant 2015
Seven Sisters walk with colleagues and family in 2016
With Dirk Messner at Seaford Head 2016
Snowed under ...
With Mick Moore skiing in Austria 2016
With Melissa Leach at my retirement party in December 2015