Metadata is data that provides information about other data. In the context of published works, metadata typically includes information such as the title of the article, the author(s), the date of publication, and relevant keywords or index terms.

English metadata is metadata that is written in English, regardless of the language of the original work. Providing English metadata for non-English articles is important for making the research more widely accessible, as it allows researchers who do not speak the language of the original work to quickly and easily find and access the article.

English metadata is typically created by a professional translator or a native English speaker who is proficient in the language of the original work. The goal is to create metadata that accurately reflects the content and main points of the article, while also being written in clear, concise, and easy-to-understand English. This can include translating the title, author names, and other key metadata elements into English, as well as assigning relevant keywords or index terms that will help researchers find the article when searching databases or other indexing systems.