ISO 639-3 is a part of the ISO 639 standard that provides codes for the representation of names of languages. It includes three-letter codes for over 7,000 languages, dialects, and language varieties, making it one of the most comprehensive language coding systems available. This standard helps in the consistent identification and classification of languages in various applications, including linguistics, library science, and information technology. The primary goal of ISO 639-3 is to facilitate the exchange of information about languages across different systems and platforms. By using these standardized codes, researchers, educators, and software developers can ensure clarity and accuracy when referring to specific languages, thus promoting better communication and understanding in a multilingual world.