This guideline is a part of the English Wikipedia's Manual of Style.
|Manual of Style (MoS)|
Linking through hyperlinks is an important feature of Wikipedia. Internal links bind the project together into an interconnected whole. Interwikimedia links bind the project to sister projects such as Wikisource, Wiktionary and Wikipedia in other languages, and external links bind Wikipedia to the World Wide Web.
Appropriate links provide instant pathways to locations within and outside the project that can increase readers' understanding of the topic at hand. Whenever writing or editing an article, consider not only what to put in the article, but what links to include to help the reader find related information, and also which other pages should have links to the article. Avoid both underlinking and overlinking, as described below.
This page provides guidelines as to when links should and should not be used, and how to format links. For information about the syntax used to create links, see Help:Link. For links on disambiguation pages, see Wikipedia:Manual of Style/Disambiguation pages.