@Percival
You were given links to assist you with the forum when you first posted. Please read what you were given. It will answer many of your questions. FAQ Collection for Newcomers
There are almost 5 years worth of posts on the forum. In that time many questions have been answered and the info updated over the years. Once you have read the information given you will find that you have more detailed questions. You can use the search function in the upper right hand corner of each page (the magnifying glass) to search for any keyword. That way you will be lead to material about fields and find wonderful gems of knowledge. Enjoy! 