There were very, very few things I liked about this book. Firstly, many of the claims can be proven false by a quick Google search. I understand why this was popular when it was published in the 30s, but in this day and age it's easy to disprove huge swaths of the book. The entire premise is that the author, Hill, met Andrew Carnegie and spent 20 years interviewing great men about their wealth as research for this book. There's no evidence Hill ever met Carnegie, never mind the other 500 men he supposedly interviewed. The entire book falls apart when you realize the crux of it is a sham.

There's also a lot of ableism in this book in random places. The one that stands out the most is the anecdote where Hill "desires" his deaf son to be hearing enough that the child does become a hearing child. Based on the information we're given, I believe the child just learned to read lips and learned to speak. 

The book also spends a lot of time discussing "energy" and "vibrations". If that stuff works for you and you're not hurting anyone, then go for it. It personally did not ring true for me. 

The writing is sloppy, you're talked down to quite a bit, most of the book is built on lies, there's too much about energy and vibrations for my taste - overall, a poor reading experience. I wish I could give it 0 stars.