400. That’s an error.

Google cannot redirect you to http://www.bookdepository.com/Methods-of-Information-Geometry-Shun-Ichi-Amari/9780821843024?redirected=true&utm_medium=Google&utm_campaign=Base5&utm_source=AU&utm_content=Methods-of-Information-Geometry&selectCurrency=AUD&w=AF45AU9SHBGBLFA807KN because the request was invalid.

This might be because the link was created a long time ago. Try your search again on Google. That’s all we know.