Good afternoon Mrs Fourie. I just want to give a special thanks to you for writing so a great book. It helps me alot. today I can do maths with confidence. I am on college and never did maths on school and now I am doing great in college because of Mrs fourie books I can deal with high level maths.😃😃😃😃. I am studying electrical engineering. A student only need the X factor books to really appreciate mathematics.