Verulam (readers' letters – September 2017)

This is a useful book giving insights into special horizontal loadings on building structures, suitable structural resistance systems and current US design office practice, says John Lyness.

This comprehensive work will be essential reading for anyone researching or undertaking a major study in the area, concludes Paul Jackson, with the sections on restraint-induced cracking likely to be of most interest to designers.

Balazs Trojak challenges BIM refuseniks to dip their toe in the water and explore its benefits, or risk irrelevance in an increasingly digital future.