Linking through hyperlinks is an important feature of an online encyclopedia. Internal links bind the project together into an interconnected whole; interwiki links link the project to sister projects such as Wikipedia in other languages, Wikisource and Wiktionary, and external links help to embed Wikipedia into the external World Wide Web.
Links provide instant pathways to locations within and outside the project that are likely to increase our readers' understanding of the topic at hand. When writing or editing an article, it is important to consider not only what to put in the article itself, but what links should be included to help the reader find related information, as well as which other pages should carry links to the article. Care should be taken to avoid underlinking and overlinking, as described below.
This page contains guidelines as to when links should and should not be used, and how to format them. Detailed information about the syntax used to create links can be found at Help:Link. The rules on linking applicable to disambiguation pages are set out in the disambiguation style guide.