The copy I have is only 366 pages, but it's 'converted' from the ebook so I'm not sure if that's a factor. A lot of the pages are dedicated to an examination of the grammar that's probably not relevant for a language overview and the rest is really readable and easily skimmed for interesting details. It's broken up with simple and clear examples every few paragraphs as well.

Definitely take a look through it. You definitely don't need to be a language nerd to understand it.