Clearly written for individuals with a degree in 2nd language teaching at the very least, if not someone specifically involved in research on 2nd language acquisition. I've read a few books on translating and languages in general... but those were all soft, soggy, in comparison to this.
So, it took me way longer then it should have to read it, had to look up a lot of terms. It ultimately left me with more questions then answers since, despite there being a number of concrete examples and experiments performed on poor unaware college students, much of the content involved a big picture of idea how every language acquisition philosophy is essentially right, but that even combined they don't complete the puzzle.
So, no, not lite reading, but in wanting to try and do the best by my own attempts to pick up reading (at least) second language I'm then interested by the process itself. I had to push through it to some extent.
And I wasn't exactly sure what I wanted out of it, but I came across a whole section on self guided acquisition practices, things that tend to work and don't and how to promote ones self interest. But it was a small portion of a larger book, but Cook did a great job of slathering her sections with further reading -- which is really important for what I was going after.
Another section had suggestions and material on promoting the inner voice in the 2nd language. Personally, if I get a japanese phrase/word stuck in my head I haven't forgotten it... but it turns out there's a whole method of teaching based on this. And ultimately, like learning in general, its kind of about finding what works best for the you, the learner. That section was also full of 'further reading'.
While a really great read, and something I'm really glad I got through as it's going to be super useful, the non-fiction reader side of me still kicked in and is forcing me to 4 star this rather then 5. Being that she goes all in on the research portion of language acquisition from the start... a lot of her examples are really off the cuff experiments on college students. Much of it didn't have any hard data to corroborate the idea being tested, and none of the sample sizes were ever very large.
To Cook's credit she does mention a few times that it's hard to say exactly "this method worked" or "this method did not" because the number of factors that goes into successfully learning a language are endless, plus there is no end to learning a second language, and, as she brings up more then once, what is a total success?
Point is, I found enough of the research to be informal, off the cuff, unsubstantiated, and of small enough sample sizes that she really didn't have podium for "a truly research based understanding of language acquisition."
Additional points off because of the title, being a Teacher of a Second language was kind of assumed by the author, there was nothing in here to show someone how to teach.
I'll fix her her title, "A Mostly Research Based Analysis of Successful Language Acquisition Philosophies and Best Practices"