From Summer 2001, young British citizens (18 to 25) can, for the first time, work in Japan on a working holiday visa. Japan: A Working Holiday Guide covers everything you need to know:
getting ready to go
what to do when you arrive
finding a place to live
settling in: registering as an allen, how to get a phone connection, what your Japanese neighbours will expect of you, and much more...
how to shop, especially in supermarkets when you don't speak Japanese