A company call Lomiko Metals, put this infograph out just today. It's probably one of the better 3D printing infographs I have seen in a while. It details the predicted growth of the 3d printing market, the future of 3D and 4D printing, the investment side of things and more. Lomiko is a company which is producing technology which will hopefully allow us to 3D print using graphene, thus the infograph also deals a bit around graphene as you can see below. Some very good information if you ask me: