How to buy shares in Coca-Cola?

How do I begin the process of acquiring shares in Coca-Cola, a global icon in the beverage industry? Could you provide me with a step-by-step guidance, perhaps highlighting the platforms I should use and any important factors I should consider before making the investment? Additionally, are there any specific strategies or advice you would recommend for someone new to the stock market, particularly when it involves investing in such a well-known and established company? I'm eager to learn and ensure that my first investment is a wise one.