Profile: Robert Benaim

This month's letters consider professional indemnity insurance and sole practitioners, the potential to lower carbon through lower floor loadings, and the recent President's Inaugural Address, among other topics.

This concise book can provide a valuable reference source to structural engineers designing, executing and maintaining steel structures.

What sort of person would put a significant amount of time into developing an indispensable structural carbon calculation tool, then give it away for free? Helena Russell spoke to Penny Gowler to find out.