Book is good. I recommend the whole series of books as noted above. Old style adventure……no more no less.
I enjoyed the (of its time) Richard Chamberlain series particularly because there was no translation of the Japanese speech…..so you were in the same position as the hero and learned with him. (My Japanese is limited to discussing navigation because of that..😉🤫)
I refuse to kow-tow to Disney so don’t have the new series. Does it provide translations? Shame if it does.
I can also recommend Samurai William the non-fiction book which covers the life of the navigator on which Clavell based his Shogun character.