Profile: John Roberts

This month's letters continue the discussion on the value of the brainteasers in the publication, offer another view on load factors, request that building control records be kept for posterity, and address concrete detailing.

Stephen Hargreaves of insurance broker Griffiths & Armour discusses the recent experiences of UK consultants with regards to liability and contractual terms.

David Knight has made his mark in the bridges sector through his involvement in some of the industry's smallest, yet most inspired, footbridge projects. He talks to Helena Russell about the power of collaboration, and what designers can learn from fabricators.