Just learn now. But be aware that observational drawing is a different skill than illustrating your "phantasy" mental images. In the second category, the engin

Just learn now. But be aware that observational drawing is a different skill than illustrating your "phantasy" mental images. In the second category, the engineer Elmer Sperry apparently had a serious facility for visualizing machinery, and would hold out a pen and paper to "just draw a line around it". It's mentioned in Eugene Ferguson's book Engineering and the Mind's Eye: https://books.google.ie/books?id=WcqaKE_Eg1IC&pg=PA51#v=onepage&q&f=false https://books.google.ie/books?id=WcqaKE_Eg1IC&pg=PA51#v=onep...