Preserving the Art Jodo is a classical martial art (ko budo). The way that we approach and study this art is different than our approach to aikido, though in the end our experience should lead us to the understanding that both arts (all true budo in fact) are based upon the same fundamental principals and it is only the outer forms that change. We approach jodo with a sense of preservation. It is our duty to try to keep the techniques and kata of the system exactly as they have been given to us by our teacher so that they can in turn be passed on to future generations without distortion.