An illustrative approach to advertising has helped a great deal to establish and develop the Coca-Cola brand worldwide. From the very beginning, illustrations created by many stalwarts in the field of American illustration based on different themes like celebration, enjoyment, family gatherings, festivals, travels, world war, workers, young couples, sports, adventures, and so on. These illustrations were iconic and high in their aesthetic standards. In this case, study research, descriptive analysis made to understand the impact of illustration in developing the brand image for the product to examine the changing trends in advertising and the use of different graphic language over the period. These illustrations are the records of social life, economic transformation, and lifestyle changes and give us a clear idea about how that is reflected in the changing graphic languages of the illustration styles, use of medium, rendering techniques, etc. This case study aims at studying the creative use of illustration for branding and advertising. How illustrations have contributed to building the brand image for the product and what are the themes and their cultural impact on society?