A trademark is a unique symbol, word, or phrase that identifies and distinguishes a company's products or services from others. For example, the Nike swoosh logo is instantly recognizable and represents the brand's athletic footwear and apparel. Trademarks help consumers know the source of a product and ensure they receive the quality they expect. Registering a trademark provides legal protection, preventing others from using a similar mark that could confuse customers. This protection encourages businesses to invest in their brands, knowing their identity is safeguarded. Famous trademarks, like Coca-Cola or Apple, have become valuable assets, contributing significantly to their companies' success.