This is a book on helping yourself financially at any cost. Taking advantage of people, delaying payment, trading on insights gleaned through shady networks, you name it.
The author comes across as a clueless smirking scumbag who values nothing but amassing wealth. He details his meteoric rise selling unnecessarily expensive office equipment during Hawaii's post-war modernization period, then applying his cash to a series of investments. The whole thing is as irreproducible today – when the middle class that made it possible is rapidly vanishing – as it was unprecedented at the time.
So what's the big advice? 1. Don't try to run a business – too hard, and it enriches people other than yourself! 2. Kids? Nope; find yourself a spouse as equally money-obsessed as you, just as the author did. 3. Value a career spent in academia (as the author's father did?) hell no. Get your photo taken with Donald Trump and slap that in the back of your book.