Research - What is logo ?
Logos are the marks by which companies are recognized.
Logos provide the vital service of helping us recognize, in an instant, the product or service which is being offered. In a world which is becoming ever more confusing because of the plethora of choice, brands help us home-in on products which are familiar and in which we have confidence. They assist us in making supplier choice with the best logos and brands being attached to the best companies.
As a result, companies change their logos relatively infrequently and often quite subtly. Those pictures shows how the Shell logo, BMW , Apple and the IBM logo have all changed over decades



