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Explore Wikipedia's contents

Below are pages to help you select subjects to learn about.


  • Overview   —   main articles of various topics
  • Outlines   —   subject summaries, with a dual purpose:
    1. Ease of discovery – outlines show which topics belong to a subject and why
    2. Access to articles – outlines serve as tables of contents of Wikipedia
  • List of academic disciplines   —   subjects studied in college or university


More topic lists. Some are lists of lists.

  • Lists   —   of related items

Two of the broadest list collections are:

Alphabetical indexes


Featured content

Featured content is the best Wikipedia has to offer, via vigorous peer review. Presented by type:

Spoken articles

Growing collections of Wikipedia articles are available as spoken word recordings.

Wikipedia books

Wikipedia books are collections of Wikipedia articles that can be viewed, downloaded, or printed into a book. They provide a roadmap for a course of study in a particular subject.


A portal introduces the reader to a subject by presenting images, categories and excerpts of key articles. Portals also guide editing by providing to-do lists.

Categorical indexes

Wikipedia's category system is generated from category tags at the bottom of articles and other pages. The top-level pages are:

  • Categories   —   an index of major categories, arranged by subject (because this page is crafted by hand, it is an exception to the category autogeneration rule)
  • Category:Articles   —   the category in which all article category systems are located
  • Category:Wikipedia categories   —   pages and categories which themselves specifically relate to categories
  • Category:Contents   —   the highest level or "root" category in Wikipedia   —   its subcategories contain various types of encyclopedic content, content that assists with the navigation of the encyclopedia, as well as pages related to the maintenance of the encyclopedia   —   its autogenerated entries are listed at the bottom of the page
  • Category:Fundamental categories   —   the category containing the most fundamental ontological categories, such that every article category system can reasonably be expected to be within it

Wikipedia's other broad categorical indexes are:


Glossaries are lists of terms with definitions.

Most popular articles