A trademark is a symbol used to identify goods or services from one source and distinguish them from others. They can be words, logos, or other visuals. Unregistered trademarks use TM or SM symbols, while registered trademarks use the ® symbol. Trademarks identify the origin and guarantee the quality of products, and help advertise and create brand images. Similarly, service marks identify and distinguish services. Geographical indications (GIs) identify goods with specific geographical origins that possess qualities due to local factors like climate or traditions. Copyright protects original creative works like literature, art, music, films and software, and is automatic upon creation, though registration provides evidence of ownership.