One Logo reflects multiple ideas. The logo, or brand is not just a graphic but a true embodiment of an organization; be it its values, domain and ethos, among others. It is generally believed that designing a logo is one of the most critical areas in graphic design and is therefore taken as the most difficult area to perfect.
A good logo is unique and does not confuse customers with other logos. It can be used in many different contexts while retaining its integrity and is functional. A good logo, be it large or small, should remain effective and should work - be it in full-color, two color presentation (black and white), spot color or half-tone.