Norman Foster Foundation presents free On Cities masterclasses

Dezeen promotion: the educational foundation set up by architect Norman Foster has released an online masterclass series focused on topics related to contemporary cities, with lectures given by experts including architects Sou Fujimoto, Francis Kéré and Deborah Berke.
Available to watch now, the On Cities series of 30-minute video classes explore the most pressing issues facing urban environments around the world today.
The Rocinha favela in Rio de Janeiro, photographed in 2010. Ph