If you want to find out more about Dianetics and Scientology, the best way to do this is to read an L. Ron Hubbard book on the subject. I personally recommend you read The Scientology Handbook.
I use this book daily in my life. It has all the tools I need from marriage, children, to communication and even tools for the workplace. I would recommend this book to everyone. It is basic so that everyone can use it and apply it, yet it has such fundamental information that you can directly apply to your life. That it the beauty of Scientology. It gives you tools you can use and apply to you life.