Wow, what a great adventure! If you haven't heard of it, it's about an English sea captain who gets marooned in Japan around 1600, and has to adapt to Japanese culture. Lots of politicking, romance, and decapitation. Very loosely based on real people too.
Have you read it? What did you think?
As a sidenote I just found out FX is releasing a miniseries based on it next year!
I remember a TV series called Shogun in the 1980s. Found it on imdb: Shogun TV 1980s.
that one was based on the book yeah