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 Introduction to Scientology Ethics.
I have so many favourite books. Introduction to Scientology Ethics was my first taste of Scientology. A friend showed it to me when I was really worried about a decision I had to make regarding work. I used the information to make the RIGHT decision with confidence.