It has a lot here already. But I'm going to share some anyways, kendo is the way of the sword, but now it is used with bokkens and bamboo swords. They sell books on these. 'Professionally' they use it in competition. That isn't the Way though, they do this because people make a lot of money from these gatherings. The real kendo, the ancient way, is for self improvement and mind/body. Wasn't used against others for competition. Then right after that(the time of the sword) they used it to increase swordsmanship.