Book review: Illustrated history of cement and concrete

This month's letters revisit an example of carbon savings, call for better financial checks of companies, and praise last month's article on carbon-driven design.

Allan Mann wholeheartedly endorses this guide to the management of design risk, which will be of benefit both to those new to the topic and those already well versed in the subject.

To mark the 100th anniversary of The Structural Engineer , Peter Debney selects three early articles on computerised analysis which had a profound impact on him and contain lessons that remain relevant to engineers today.