When you are scheduled for a job interview, your friends would always advice you to dress appropriately. This is also what you could read in most books, always emphasizing the need to appear presentable in front of the hiring manager.
Appearance really matters during the interview. Why? Because whether you like it or not, people are judged based on appearance. The way you dress up conveys a lot of meaning about your personality. It creates impression about you and yourself alone.
It is important that you dress up like a seasoned professional. Always remember that being overdressed is better than being underdressed. But if you could wear tailored business suits, which are always a safe option for both men and women, the better.