Difference between Interior Designing & Interior Decoration

It is totally justified to doubt why you find more interior designing courses than interior decoration courses that amounts to a certification.It is totally justified to doubt why you find more interior designing courses than interior decoration courses that amounts to a certification.It is totally justified to doubt why you find more interior designing courses than interior decoration courses that amounts to a certification.It is totally justified to doubt why you find more interior designing courses than interior decoration courses that amounts to a certification.