This guy, Mr. JACK GALLAGHER, seems like a big admirer of Mao, just as much as Hersh of Sasha. Just to give info, the book title, "Princess Mao," is a subtitle of "Asada Mao Story" written for young children. My guess is that the publisher believes that little girls love princesses. Mao is enormously popular among kids and parents so that the publisher would earn a big deal.
OT -- Was Yagudin's book ever published anywhere else but in Japan?