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 Scientology: A New Slant on Life.
This was the first book I read in Scientology and it gave me data that was very applicable to me. I really liked the chapter on honest people having rights. In this day and age I had given up on this concept. This book really gave me a grasp on what Scientology is all about and I knew there was hope for me and others.