In case you are interested, "Finding Your Own Visual Language" is available from Amazon Japan if you know someone who can navigate you though the ordering process. It's almost the same as the American version except where you enter your name; the site assumes you have a Japanese name and asks for the Chinese characters and the pronunciation. It took me three goes.
But more conveniently, Dale Rollerson at The Thread Studio in Australia has some. How do I know this? I Googled the titled of the book and found her blog. Go with Dale, I say.