As of 1986, there were 20 dojos for Togakure-ryū in Japan that house 100 instructors and around 100,000 students. There were also around 50 international dojos teaching Togakure-ryū outside of Japan
"
- Henso-jutsu (disguise and impersonation)
- Shinobi-iri (stealth and entering methods)"
In some ninja clans it was known as the "Shichi Hō De" (七方出) or, "seven ways of going" (one form of ninjutsu that has a person play a role much like an actor does in impersonating people). A ninja had to appear either as a priest, samurai, merchant, craftsman, performer, puppeteer, or farmer. To accomplish this, the ninja was a well studied sociologist, observing people in other towns for long periods of time until, just like actors, ninjas could blend into the crowd. They acted like either one of the major classes to spy on people. Ninja thus sometimes carried one or two costumes to look like the other classes and kunoichi were specialists at Hensojutsu due to the importance of close contact missions. It also included the art of camouflage, such as mesh covered with leaves, grass, mud, bark etc. It is heavily reliant upon shadows and form manipulation..such as crouching to resemble a rock, twisting to match a bush, and also includes various ways one can "meld" into foliage to virtually disappear.
This is different from other methods in that the ninja needs only to appear like someone else for a short period of time. Ninja typically must learn the character traits of another class quickly and then impersonate the members of that class. For instance, if workers were walking in large numbers toward a worksite, using this skill the ninja observes the worker, copies the same clothing and walking style of the workers, then follows the crowd in just like the other workers. A good ninja ought to be able to impersonate anybody in terms of appearance."
It is interesting to mention that the first paragraph is written as about the past, as ninjutus " existed", and in the others at present.