A logo can take the form of a combination of symbols, colours, an illustration with or without lettering, or other design elements. By form they divide into pictorial/symbolic, typographic and combined logos. A good logo should be simple, appropriate, timeless, easily recognisable, distinctive and adaptable so that you can use it anywhere. You can use a brand logo on a website, product packaging, promotional materials, business cards, banners, billboards and so on.
An original logo contributes to brand recognition. Even if a customer cannot recall the name, they may recognise you visually by the logo. Which iconic logos came to your mind just now?