Most of what the male author of this book states is common sense. E.g. "a cheating man is bad", "If he doesn't call you, ask you out, sleep with you, he isn't into you". However--I hold great contention in how absolute the author in his assessment of men. He presumes all men work the same, and that's just not true.
In the book he gives an example of a girl dating a man who's just come out of a divorce. He's told her that he's not ready to get into a serious relationship right now because he just got out of one--makes complete sense. The author's assessment? "He's just not that into you". Are you kidding me? He says that if a man likes you, he will do what it takes to keep you in his life--he's knows a jewel when he sees one. So are you saying that the fact that he just came out of a broken wedlock couldn't possibly have left him with hesitations about entering into another long term relationship so soon regardless of the girl? Give me a break.
The author also says that if a man wants you, he'll do whatever it takes to get you. I strongly disagree. Take a look at the (male) author of this book, he's a self-proclaimed "bad boy", who we may deduce was probably pretty cocky when it came to dating. I'm guessing (as per the "bad boy stereotypical formula") that he had no problems approaching and pursuing women. The thing is though Mr. Author-man, not all men are created the same.
Some men are shy.
Some men genuinely have baggage.
Some men need a little encouragement because their last few attempts have falled flat.
I agree that the male should do a lot of the pursuing, but I don't think the girl needs to sit back and allow herself to be led at the will of the guy. That's simply ridiculous.
The black and white "If he doesn't do 'x', then he's not into you" is way too simplistic, and it's a mindset that could potential ruin a perfectly good relationship if followed.
I do feel that some women make too many excuses for the way men treat them--and this book should shed light on them. However, I caution them to read with a grain of salt because not all men are of the type the author write about.
I'm suspect when a non-expert writes so-called "expert" books. There's definitely something to be said having formal education training --you understand that humans are complex beings composed of many different experiences, emotions, and opinions that form the way they react in a relationship setting.
My advice (and this is free!): Be yourself, relax, and don't try too hard to get someone to like you. Recognize the common sense warning signs, and never stay in a relationship that doesn't make you happy 95% of the time.