Don't ask me why 'cuz I have no clue. Before today I hadn't even opened it in probably 20 years. It looks like I used it for a while but quit barely a few letters into the alphabet. My handwriting was terrible; childlike scratchings. I did study Japanese for 2 years at University, but we had textbooks for that.
One might expect Carrie to have given me Korean study books, but she was a bit Japan-obsessed. I already mentioned I have a picture of her in a Kimono standing in front of a Japan Travel poster. Years after we separated, I heard a third-hand rumor that she was in Japan working as a "hostess." No idea if it's true or not.