Where to find Contax G1/G2 Book/magazine?

Hello,

I recently purchased a Konica Hexar RF book/magazine on ebay from Japan. It
had information about the cameras, lens options, etc.

It was published by "For tasty life" in Japan. I have checked their website
for information. They sell a book, I think that does generic camera
information a few times a year from what I think is going on(I don't
read/speak Japanese).

I was wondering is there are others similar books for the Contax G system of
cameras.

I have also googled for information, I have found books with information on
the Contax G cameras but not one like I have here. I thought maybe someone
here has a book or knows of where to get books. I am thinking, because the
camera came out 10 years ago (g1 and ?? years ago for the G2) the
books/magazines had maybe been published ages ago, hence I cant find
anything very easily.

Thanks in advance.