href="index.html"><i class="fa fa-check"></i>Welcome</a></li>
<li class="chapter" data-level="1" data-path="preface.html"><a href="preface.html"><i class="fa fa-check"></i><b>1</b> Preface</a>
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<li class="chapter" data-level="1.1" data-path="preface.html"><a href="preface.html#why-interactive-web-graphics-from-r"><i class="fa fa-check"></i><b>1.1</b> Why interactive web graphics <em>from R</em>?</a></li>
<li class="chapter" data-level="1.2" data-path="preface.html"><a href="preface.html#what-you-will-le