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<div class="navheader"><h1 class="booktitle">Mercurial: The Definitive Guide<div class="authors">by Bryan O'Sullivan</div></h1></div>

<div class="book">

  <h2>Welcome to Mercurial: The Definitive Guide</h2>

  <p>This is the online home of the book &#8220;Mercurial: The

    Definitive Guide”.  

    It was published in 2009 by O'Reilly Media.</p>

  <p><a href="http://www.selenic.com/mercurial">Mercurial</a> is a

    fast, lightweight source control management system

    designed for easy and efficient handling of very large distributed

    projects.  My book tells you what it is, why you should care, and

    how you can use it effectively.</p>

  <h2>Read it online</h2>

  <p>I make the content freely available online: you

    can <a href="/read/"><i>read it here</i></a>.  If you like it,

    please <a href="#buy">buy a copy</a>!</p>

  <p>For news updates, please

    visit <a href="http://www.serpentine.com/blog/">my blog</a>.  You

    should follow me on

    Twitter <a href="http://twitter.com/bos31337">here</a>.</p>

  <h2><a name="#buy">How</a> to buy</h2>

  <p>If you like the book, please support the work of the Software

    Freedom Conservancy (<a href="#sfc">see below</a>) by buying a

    copy.</p>

  <ul>

    <li><a href="http://www.amazon.com/gp/product/0596800673?ie=UTF8&tag=reaworhas-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=0596800673">Amazon.com</a><img src="http://www.assoc-amazon.com/e/ir?t=reaworhas-20&l=as2&o=1&a=0596800673" width="1" height="1" border="0" alt="" style="border:none !important; margin:0px !important;" /></li>

    <li><a href="http://oreilly.com/catalog/9780596800673/">O'Reilly Media</a></li>

  </ul>

  <h2>You should contribute!</h2>

  <p>I publish the source code for this book

    as <a href="http://bitbucket.org/bos/hgbook">a

      Mercurial repository</a>.  Please feel

    welcome to clone it, make modifications to your copy, and send me

    changes.  Getting a copy of the source takes just a few seconds if

    you have Mercurial installed:</p>

  <pre class="screen">hg clone http://bitbucket.org/bos/hgbook</pre>

  <p>The online version of the book includes a comment system

    that you can use to send feedback involving errors, omissions, and

    suggestions.</p>

  <p>(If you would like to adapt the comment system for a

    publishing project of your own, the source for the web application

    is included with the book source at the link above.)</p>

  <h2><a name="sfc">How</a> I help Mercurial and free software, and

    you can too</h2>

  <p>Mercurial is a member of the <a href="http://conservancy.softwarefreedom.org/">Software Freedom Conservancy</a>, a

    wonderful non-profit organisation that offers its member projects

    legal and administrative advice.</p>

  <p>I donate my royalties from the sales of this book to the

    Software Freedom Conservancy, and I encourage you to support their

    work, too.</p>

  <p>The SFC can

    accept <a href="http://conservancy.softwarefreedom.org/?donate">accept

    donations</a> (tax-free under IRS 501(c)(3), within the United

    States) on behalf of its member projects. If you would like to

    support Mercurial directly, please consider making a donation to

    the SFC on its behalf.</p>

  <p>If you would like to help free software developers to provide

    their important public services without being impeded by legal

    issues, please consider donating to the SFC's sister organisation,

    the <a href="http://www.softwarefreedom.org/">Software Freedom Law

    Center</a>.</p>

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