Having spent several years working for the wire services, Reuters & AP, he now works freelance, mostly on assignment for a variety of European newspapers and magazines as well as for both local and international NGO's.

In the 1980's Miller documented 'the struggle' against apartheid, in the 1990's he has covered various aspects the transformation process in South Africa.

In addition he has worked in many countries in the last few years, resulting in an extensive archive of 'documentary stock' and some travel images from countries like: Botswana, Cuba, Congo (DRC), Liberia, Namibia, Nigeria, Rwanda, Senegal, Sudan, Uganda, Vietnam and Zimbabwe.