diff --git a/cps/templates/index.html b/cps/templates/index.html
index 98f01ced..778b36ed 100644
--- a/cps/templates/index.html
+++ b/cps/templates/index.html
@@ -62,14 +62,14 @@
 <div class="discover load-more">
   <h2 class="{{title}}">{{_(title)}}</h2>
     <div class="filterheader hidden-xs hidden-sm">
-      <a data-toggle="tooltip" title="{{_('Sort ascending according to book date')}}" id="new" class="btn btn-primary" href="{{url_for('web.books_list', data=page, book_id=id, sort_param='new')}}"><span class="glyphicon glyphicon-book"></span> <span class="glyphicon glyphicon-calendar"></span><span class="glyphicon glyphicon-sort-by-order"></span></a>
-      <a data-toggle="tooltip" title="{{_('Sort descending according to book date')}}" id="old" class="btn btn-primary" href="{{url_for('web.books_list', data=page, book_id=id, sort_param='old')}}"><span class="glyphicon glyphicon-book"></span> <span class="glyphicon glyphicon-calendar"></span><span class="glyphicon glyphicon-sort-by-order-alt"></span></a>
+      <a data-toggle="tooltip" title="{{_('Sort according to book date, newest first')}}" id="new" class="btn btn-primary" href="{{url_for('web.books_list', data=page, book_id=id, sort_param='new')}}"><span class="glyphicon glyphicon-book"></span> <span class="glyphicon glyphicon-calendar"></span><span class="glyphicon glyphicon-sort-by-order"></span></a>
+      <a data-toggle="tooltip" title="{{_('Sort according to book date, oldest first')}}" id="old" class="btn btn-primary" href="{{url_for('web.books_list', data=page, book_id=id, sort_param='old')}}"><span class="glyphicon glyphicon-book"></span> <span class="glyphicon glyphicon-calendar"></span><span class="glyphicon glyphicon-sort-by-order-alt"></span></a>
       <a data-toggle="tooltip" title="{{_('Sort title in alphabetical order')}}" id="asc" class="btn btn-primary" href="{{url_for('web.books_list', data=page, book_id=id, sort_param='abc')}}"><span class="glyphicon glyphicon-font"></span><span class="glyphicon glyphicon-sort-by-alphabet"></span></a>
       <a data-toggle="tooltip" title="{{_('Sort title in reverse alphabetical order')}}" id="desc" class="btn btn-primary" href="{{url_for('web.books_list', data=page, book_id=id, sort_param='zyx')}}"><span class="glyphicon glyphicon-font"></span><span class="glyphicon glyphicon-sort-by-alphabet-alt"></span></a>
       <a data-toggle="tooltip" title="{{_('Sort authors in alphabetical order')}}" id="auth_az" class="btn btn-primary" href="{{url_for('web.books_list', data=page, book_id=id, sort_param='authaz')}}"><span class="glyphicon glyphicon-user"></span><span class="glyphicon glyphicon-sort-by-alphabet"></span></a>
       <a data-toggle="tooltip" title="{{_('Sort authors in reverse alphabetical order')}}" id="auth_za" class="btn btn-primary" href="{{url_for('web.books_list', data=page, book_id=id, sort_param='authza')}}"><span class="glyphicon glyphicon-user"></span><span class="glyphicon glyphicon-sort-by-alphabet-alt"></span></a>
-      <a data-toggle="tooltip" title="{{_('Sort publishing date in alphabetical order')}}" id="pub_new" class="btn btn-primary" href="{{url_for('web.books_list', data=page, book_id=id, sort_param='pubnew')}}"><span class="glyphicon glyphicon-calendar"></span><span class="glyphicon glyphicon-sort-by-order"></span></a>
-      <a data-toggle="tooltip" title="{{_('Sort descending date in reverse alphabetical order')}}"id="pub_old" class="btn btn-primary" href="{{url_for('web.books_list', data=page, book_id=id, sort_param='pubold')}}"><span class="glyphicon glyphicon-calendar"></span><span class="glyphicon glyphicon-sort-by-order-alt"></span></a>
+      <a data-toggle="tooltip" title="{{_('Sort according to publishing date, newest first')}}" id="pub_new" class="btn btn-primary" href="{{url_for('web.books_list', data=page, book_id=id, sort_param='pubnew')}}"><span class="glyphicon glyphicon-calendar"></span><span class="glyphicon glyphicon-sort-by-order"></span></a>
+      <a data-toggle="tooltip" title="{{_('Sort according to publishing date, oldest first')}}" id="pub_old" class="btn btn-primary" href="{{url_for('web.books_list', data=page, book_id=id, sort_param='pubold')}}"><span class="glyphicon glyphicon-calendar"></span><span class="glyphicon glyphicon-sort-by-order-alt"></span></a>
       {% if page == 'series' %}
       <a data-toggle="tooltip" title="{{_('Sort ascending according to series index')}}" id="series_asc" class="btn btn-primary" href="{{url_for('web.books_list', data=page, book_id=id, sort_param='seriesasc')}}"><span class="glyphicon glyphicon-sort-by-order"></span></a>
       <a data-toggle="tooltip" title="{{_('Sort descending according to series index')}}" id="series_desc" class="btn btn-primary" href="{{url_for('web.books_list', data=page, book_id=id, sort_param='seriesdesc')}}"><span class="glyphicon glyphicon-sort-by-order-alt"></span></a>