In the past, user interface design was one of the magical things you stayed away from. It lived in the specialised realm of ‘stuff you got other people to do’, like IT or compliance. But as companies broaden their marketing away from basic display ads and brochures, it’s become vital for marketers to get a better understanding of how design works.
User interface design does the job that has always been the realm of an art director. But it’s purely digital. You can’t be a UI designer and not be on the computer or on the digital side. If you have a blog, or an app, or a magazine, you need a more sophisticated understanding of design than you had before. Even if you’re not designing it yourself, the design is a vital part of communication with your customers. It must work if you want to get your message out.