N1Grammar- studying differences between similar expressions

I'm nowhere near N1 level, but I've heard that A Dictionary of Advanced Japanese Grammar explains higher level grammar well. I'm sure if it is anything like the Basic Grammar book (which I have), I'm sure this would be a good resource. It is available on Amazon but of course, there are other means to acquire the book. Google-sama knows.

http://www.amazon.com/Dictionary-Advance...4789012956