1 files changed, 21 insertions, 0 deletions
diff --git a/packages/gitbook-plugin-theme-default/src/components/Sidebar.js b/packages/gitbook-plugin-theme-default/src/components/Sidebar.js
index ab628df..fd10730 100644
--- a/packages/gitbook-plugin-theme-default/src/components/Sidebar.js
+++ b/packages/gitbook-plugin-theme-default/src/components/Sidebar.js
@@ -3,6 +3,25 @@ const { React } = GitBook;
 
 const Summary = require('./Summary');
 
+/**
+ * The GitBook trademark.
+ * @type {ReactClass}
+ */
+const GitBookTrademark = React.createClass({
+    render() {
+        return (
+            <a className="GitBookTrademark" href="https://www.gitbook.com/?utm_source=gitbook&utm_medium=trademark" target="_blank">
+                <span>Published with <b>GitBook</b></span>
+                <GitBook.Image src="gitbook/theme-default/images/logo.svg" />
+            </a>
+        );
+    }
+});
+
+/**
+ * Sidebar containing a serch bar, the table of contents, and the GitBook trademark.
+ * @type {ReactClass}
+ */
 const Sidebar = React.createClass({
     propTypes: {
         summary: GitBook.PropTypes.Summary
@@ -16,6 +35,8 @@ const Sidebar = React.createClass({
                 <div className="Sidebar book-summary">
                     <GitBook.InjectedComponent matching={{ role: 'search:container:input' }} />
                     <Summary summary={summary} />
+
+                    <GitBookTrademark />
                 </div>
             </div>
         );