Read: 14 - Update - 14a - DB Normalization
Database Normalization (Explained in Simple English)

Normalization stages are the way that tables are able to remove repeating information from reapeating on our tables. The key to normalization is to break the information that is repeating in to different joined tables by making sure there are linked via ids to relational tables.
This makes it an effetive way to organize data and also to keep any repeating to a mininmun for best normalization practices.
