Profile: Jon Leach

Human error, climate change, connecting with the younger generation, teaching seismic engineering in the UK and unforeseen future use of structures are all topics raised by readers this month.

From plastic theory to magnificent cathedrals, Jacques Heyman has had a long and varied career. Helena Russell maps the highlights.

Tom Howarth found himself fully immersed in a major steel reuse project just a couple of years after graduating – now he's bringing his knowledge and experience to bear on developing a template for the 'circular city'. Helena Russell reports.