Final answer:
In titles and search databases, the word 'AND' is used to indicate that all connected search terms must be included in the results. The conjunction 'AND' is not capitalized in titles unless it is the first or last word. It also signifies the presence of multiple collaborators in the titles of publications.
Step-by-step explanation:
The word AND should be interpreted to mean a conjunction that is used to connect words of the same part of speech, clauses, or sentences, that are to be taken jointly when it appears in a title. In the context of search databases and SEO, AND is used to narrow search results, indicating that all search terms connected by AND must be present in the sources returned by the database. For example, a search for ethics AND artificial AND intelligence will return results that contain all three words. When capitalizing titles, despite its functional role, AND is not capitalized unless it is the first or last word in the title or subtitle.
When considering the effectiveness of a title, it is important to assess whether the title is straightforward and consistent with the content. If an author or organization's work doesn't have a known individual author, the title of the work is used in place of the author's name in citations. Moreover, titles are influential in reviews and are most effective when they include an overall judgment or a debatable main idea, helping the audience make their own judgment about the content. In titles of publications, such as articles and books, AND is used to signify the presence of multiple authors, translators, illustrators, or other collaborators.