Taku Kabeya, chief editor at Bungeisha, shows the Japanese publisher's best selling book series _ one each for types B, O, A, and AB _ at its head office in Tokyo, Friday, Jan. 23, 2009. Four of the top 10 selling books in Japan last year were about how blood type determines personality, according to Japan's largest book distributor, Tohan Co. (AP Photo/Koji Sasahara) (AP) -- In Japan, "What's yo