Kashima-shinden Jikishinkage-ryū Heihō [ 鹿島神傳直心影流 兵法 ] is one of the most powerful surviving forms of traditional Japanese swordsmanship — its small and austere curriculum focuses on the combative use of the Japanese long sword (tachi) and short sword (kodachi). Its lineage begins in the 16th century and while its technical content has evolved over time, it continued to preserve in its advanced teachings the essence of Shinkage-ryū. This site contains a list of Jikishinkage-ryū training groups, selected research articles on its practice and mindset, as well as pointers to writing on this and related arts.