The document defines a trademark as a name, symbol, or design used to identify and differentiate the goods or services of one seller from others. Trademarks serve to identify the source or maker of a product and provide valuable functions for firms like securing a competitive advantage and better earnings. A trademark can identify a physical good, service, store, person, organization, place, or idea. Positioning involves differentiating a product from competitors based on attributes like reliability, style, technology, or business focus. Successful positioning depends on understanding customers' needs and framing the product accordingly.