diff --git a/src/app/header.html b/src/app/header.html
index 778ddd1b3..ba6c8d3cc 100644
--- a/src/app/header.html
+++ b/src/app/header.html
@@ -106,6 +106,12 @@
                         <span class="caret"></span>
                 </button>
                 <ul class="dropdown-menu">
+                    <li>
+                        <a target="_blank"
+                            href="https://omero-guides.readthedocs.io/projects/iviewer/">
+                            How to use OMERO.iviewer
+                        </a>
+                    </li>
                     <li click.delegate="showAbout()">
                         <a href="#">About OMERO.iviewer</a>
                     </li>