Times of crises can highlight just how essential key workers are to the running of society.

The selection below features nurses, carers, teachers, transport workers, local council workers, supermarket staff, members of the emergency services, and volunteers. It is remarkable that whilst the world of work has changed so considerably over the decades, these key roles have remained largely the same.

The coronavirus outbreak brought about a renewed appreciation for the work these people do, and the sacrifices that they make. Looking back lets us see how these key workers have always been an indispensable part of our everyday lives, and helps us to remember that they will continue to be so long after things return to normal.