There is no real purpose for this book except perhaps to point you to his earlier work
On 88 pages Robert Kiyosaki explains how to become rich without cutting up your credit cards. Or at least I thought he would because he doesn't. Instead the author is getting lost amongst his autobiographical flashes and doesn't really answer the book's title. Secondly, he makes lots of references to his previously published books so in fact you would learn a lot more on the topic if you read those books instead of this one.
If you have read any of Kiyosaki's previously published books you get the distinct feeling that this book is a result of boredom rather than any intention to teach us any more of the Author's wisdom. Star-wise, this book should be a solid zero.
However, if you have not read Kiyosaki before, you might find some of the information here quite useful and it might encourage you to read some of Kiyosaki's early books, which are a lot better anyway. Hence the overall rating of three stars.

Another Great Book
Another Great book to add to all of his others. I find it a great insperation to those of use on the hard road and looking to turn their lives around. Great lessons on what your bankers see as assests and liabilites. A great idea that comes to mind from his book is when he tells us "to get richer buy a car". Use the things in life that we want to drive us to the goals we need to achieve those things.

Rich Dad's Guide to Becoming Rich...Without Cutting Up Your Credit Cards
The book is written very well. It is hard to believe that Robert Kiyosaki almost failed his English class. It is more of an Inspiration rather than a "Guide", however most of the advice is applicable in the real life and I would recommend everyone, who needs a little "push" in life to read it too.

Teaching to be financially smart.
This book teaches you to be financially smart with the use of credit cards and that you don't have to cut up your credit cards, but to be financially smart when using them wisely. Credit card companies are just waiting for you to make a mistake and in the world of investing and your portfolio is your report card. Just like in school you've got to maintain that B average and shoot for that A+ card and keep fixing all the little mistakes until you do achieve it.

Don't waste your time or money on this...
...unless you've never read any of his other books. Don't get me wrong, I can't say enough good things about Robert Kiyosaki's books. If you haven't read them (Rich Dad Poor Dad, Cashflow Quadrant, etc.), I highly recomemd that you do. But there's nothing new in this book. It just a retread of ideas already presented in his other books, and not as well. If fact, reading it felt like a advertisment for his other books and products.