ng>easybook</strong>. Imagine you want to modify the original Markdown content of the chapters  before converting it to HTML. This is really easy because, before converting a content, <strong>easybook</strong> notifies that it's going to convert it. Then, your book can create a plugin that <em>listens</em> to this events and executes some code when an specific event is notified.</p>

<p>Technically, plugins are based on the subscribers defined by the event dispatcher component of Symfony2. They are regular 