As the different types of signage solutions continue to increase and develop, digital signage is undoubtedly on the rise. New ways of interacting with, and enticing, customers in retail are popping up in high street stores and malls around the world.Sue Mason investigated the impact digital signage has on retail and looks at other ways in which it can be used that we may sometimes take for granted, and are therefore not quite as obvious. As our feature highlights, it can even be used to save lives.