G. Ng
There is no information provided about the author, G. Ng , in the given documents.
The reviews and book details do not mention any biographical information or background about the author.
Some reviewers express doubt about the authenticity of the letters, suggesting they may have been translated from Chinese to English rather than being Rockefeller's original writings.
One reviewer even attempts to contact the author for translation rights but is unable to find any contact information.
Without additional sources, it is not possible to provide a summary of the author's background, qualifications, or other works.