Japanese Black Teas, Who Knew?

I just had a visit from a young English customer...he has just finished his 2nd year at Oxford. He knows his teas. He has just made me aware of Japanese Black Tea. I went on line and have ordered a small sample to try. I'll let you know when I get them. He says that they have a very unique taste.
As soon as he left the shop I received a note from another new customer telling me about Australian teas that are supposed to have less caffeine and reduced tannins compared to other teas. I'll try to get hold of some of that as well. Ah, the limitless world of tea.