"Editing Wikipedia" gives you a basic introduction to how to edit Wikipedia. You will learn what Wikipedia is and how it works, how to navigate Wikipedia, how and why you should contribute to Wikipedia, important rules that keep Wikipedia reliable, how to edit with VisualEditor and using wiki markup, how to add content, and etiquette for interacting with other contributors. The "Editing Wikipedia" brochure includes a quick reference that helps you to remember the most frequently used wiki markup commands. Source files available in <a rel="nofollow" class="external text" href="https://wikimediafoundation.org/wiki/File:Editing_Wikipedia_brochure_source_-_InDesign.zip">InDesign</a> format; <a rel="nofollow" class="external text" href="https://wikimediafoundation.org/wiki/File:Editing_Wikipedia_brochure_-_Scribus_source.zip">Scribus</a> format. Screenshots and other assets can be found separately in <a href="//commons.wikimedia.org/wiki/Category:Editing_Wikipedia_brochure_assets" title="Category:Editing Wikipedia brochure assets">Category:Editing Wikipedia brochure assets</a>. Designed for printing on standard B5 paper. (If you must use A4, print at 116%.)
Wikimedia Foundation
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<a href="https://outreach.wikimedia.org/wiki/Welcome_to_Wikipedia_(Bookshelf)/2013_edition" class="extiw" title="outreach:Welcome to Wikipedia (Bookshelf)/2013 edition">outreach:Welcome to Wikipedia (Bookshelf)/2013 edition</a> (<a href="https://outreach.wikimedia.org/wiki/Welcome_to_Wikipedia_(Bookshelf)/2013_edition/text" class="extiw" title="outreach:Welcome to Wikipedia (Bookshelf)/2013 edition/text">text for translation</a>, <a href="https://en.wikisource.org/wiki/en:Index:Editing_Wikipedia_brochure_EN.pdf" class="extiw" title="wikisource:en:Index:Editing Wikipedia brochure EN.pdf">Wikisource version</a>)