diff --git a/cps/db.py b/cps/db.py
index 0d7055a4..7f05e24c 100644
--- a/cps/db.py
+++ b/cps/db.py
@@ -702,14 +702,21 @@ class CalibreDB():
         return self.session.query(Books) \
             .filter(and_(Books.authors.any(and_(*q)), func.lower(Books.title).ilike("%" + title + "%"))).first()
 
-    def search_query(self, term):
+    def search_query(self, term, *join):
         term.strip().lower()
         self.session.connection().connection.connection.create_function("lower", 1, lcase)
         q = list()
         authorterms = re.split("[, ]+", term)
         for authorterm in authorterms:
             q.append(Books.authors.any(func.lower(Authors.name).ilike("%" + authorterm + "%")))
-        return self.session.query(Books).filter(self.common_filters(True)).filter(
+        query = self.session.query(Books)
+        if len(join) == 3:
+            query = query.outerjoin(join[0], join[1]).outerjoin(join[2])
+        elif len(join) == 2:
+            query = query.outerjoin(join[0], join[1])
+        elif len(join) == 1:
+            query = query.outerjoin(join[0])
+        return query.filter(self.common_filters(True)).filter(
             or_(Books.tags.any(func.lower(Tags.name).ilike("%" + term + "%")),
                 Books.series.any(func.lower(Series.name).ilike("%" + term + "%")),
                 Books.authors.any(and_(*q)),
@@ -718,10 +725,10 @@ class CalibreDB():
                 ))
 
     # read search results from calibre-database and return it (function is used for feed and simple search
-    def get_search_results(self, term, offset=None, order=None, limit=None):
+    def get_search_results(self, term, offset=None, order=None, limit=None, *join):
         order = order or [Books.sort]
         pagination = None
-        result = self.search_query(term).order_by(*order).all()
+        result = self.search_query(term, *join).order_by(*order).all()
         result_count = len(result)
         if offset != None and limit != None:
             offset = int(offset)
diff --git a/cps/services/__init__.py b/cps/services/__init__.py
index efd55621..e6e5954c 100644
--- a/cps/services/__init__.py
+++ b/cps/services/__init__.py
@@ -49,5 +49,5 @@ except ImportError as err:
 try:
     from . import gmail
 except ImportError as err:
-    log.debug("Cannot import Gmail, sending books via G-Mail Accounts will not work: %s", err)
+    log.debug("Cannot import gmail, sending books via Gmail Oauth2 Verification will not work: %s", err)
     gmail = None
diff --git a/cps/templates/book_table.html b/cps/templates/book_table.html
index e700eb53..bb167ad3 100644
--- a/cps/templates/book_table.html
+++ b/cps/templates/book_table.html
@@ -47,13 +47,13 @@
             {{ text_table_row('title', _('Enter Title'),_('Title'), true, true) }}
             {{ text_table_row('sort', _('Enter Title Sort'),_('Title Sort'), false, true) }}
             {{ text_table_row('author_sort', _('Enter Author Sort'),_('Author Sort'), false, true) }}
-            {{ text_table_row('authors', _('Enter Authors'),_('Authors'), true) }}
-            {{ text_table_row('tags', _('Enter Categories'),_('Categories'), false, false) }}
-            {{ text_table_row('series', _('Enter Series'),_('Series'), false, false) }}
+            {{ text_table_row('authors', _('Enter Authors'),_('Authors'), true, true) }}
+            {{ text_table_row('tags', _('Enter Categories'),_('Categories'), false, true) }}
+            {{ text_table_row('series', _('Enter Series'),_('Series'), false, true) }}
             <th data-field="series_index" id="series_index" data-visible="{{visiblility.get('series_index')}}" data-edit-validate="{{ _('This Field is Required') }}" data-sortable="true" {% if g.user.role_edit() %} data-editable-type="number" data-editable-placeholder="1" data-editable-step="0.01" data-editable-min="0" data-editable-url="{{ url_for('editbook.edit_list_book', param='series_index')}}" data-edit="true" data-editable-title="{{_('Enter title')}}"{% endif %}>{{_('Series Index')}}</th>
-            {{ text_table_row('languages', _('Enter Languages'),_('Languages'), false, false) }}
+            {{ text_table_row('languages', _('Enter Languages'),_('Languages'), false, true) }}
             <!--th data-field="pubdate" data-type="date" data-visible="{{visiblility.get('pubdate')}}" data-viewformat="dd.mm.yyyy" id="pubdate" data-sortable="true">{{_('Publishing Date')}}</th-->
-            {{ text_table_row('publishers', _('Enter Publishers'),_('Publishers'), false, false) }}
+            {{ text_table_row('publishers', _('Enter Publishers'),_('Publishers'), false, true) }}
           {% if g.user.role_delete_books() and g.user.role_edit()%}
             <th data-align="right" data-formatter="EbookActions" data-switchable="false">{{_('Delete')}}</th>
           {% endif %}
diff --git a/cps/templates/email_edit.html b/cps/templates/email_edit.html
index 8b92a248..ac1c36d2 100644
--- a/cps/templates/email_edit.html
+++ b/cps/templates/email_edit.html
@@ -12,7 +12,7 @@
       <label for="mail_server_type">{{_('Choose Server Type')}}</label>
       <select name="mail_server_type" id="config_email_type" class="form-control" data-control="email-settings">
        <option value="0" {% if content.mail_server_type == 0 %}selected{% endif %}>{{_('Use Standard E-Mail Account')}}</option>
-       <option value="1" {% if content.mail_server_type == 1 %}selected{% endif %}>{{_('G-Mail Account with OAuth2 Verfification')}}</option>
+       <option value="1" {% if content.mail_server_type == 1 %}selected{% endif %}>{{_('Gmail Account with OAuth2 Verfification')}}</option>
       </select>
     </div>
     <div data-related="email-settings-1">
@@ -20,7 +20,7 @@
         {% if content.mail_gmail_token == {} %}
         <button type="submit" id="gmail_server" name="gmail" value="submit" class="btn btn-default">{{_('Setup Gmail Account as E-Mail Server')}}</button>
         {% else %}
-        <button type="submit" id="invalidate_server" name="invalidate" value="submit" class="btn btn-danger">{{_('Revoke G-Mail Access')}}</button>
+        <button type="submit" id="invalidate_server" name="invalidate" value="submit" class="btn btn-danger">{{_('Revoke Gmail Access')}}</button>
         {% endif %}
       </div>
     </div>
diff --git a/cps/web.py b/cps/web.py
index 0eaacdb1..e01b4b22 100644
--- a/cps/web.py
+++ b/cps/web.py
@@ -760,10 +760,26 @@ def list_books():
     sort = request.args.get("sort", "id")
     order = request.args.get("order", "").lower()
     state = None
+    join = tuple()
 
     if sort == "state":
         state = json.loads(request.args.get("state", "[]"))
-    if sort != "state" and order:
+    elif sort == "tags":
+        order = [db.Tags.name.asc()] if order == "asc" else [db.Tags.name.desc()]
+        join = db.books_tags_link,db.Books.id == db.books_tags_link.c.book, db.Tags
+    elif sort == "series":
+        order = [db.Series.name.asc()] if order == "asc" else [db.Series.name.desc()]
+        join = db.books_series_link,db.Books.id == db.books_series_link.c.book, db.Series
+    elif sort == "publishers":
+        order = [db.Publishers.name.asc()] if order == "asc" else [db.Publishers.name.desc()]
+        join = db.books_publishers_link,db.Books.id == db.books_publishers_link.c.book, db.Publishers
+    elif sort == "authors":
+        order = [db.Authors.name.asc()] if order == "asc" else [db.Authors.name.desc()]
+        join = db.books_authors_link,db.Books.id == db.books_authors_link.c.book, db.Authors
+    elif sort == "languages":
+        order = [db.Languages.lang_code.asc()] if order == "asc" else [db.Languages.lang_code.desc()]
+        join = db.books_languages_link,db.Books.id == db.books_languages_link.c.book, db.Languages
+    elif order and sort in ["sort", "title", "authors_sort", "series_index"]:
         order = [text(sort + " " + order)]
     elif not state:
         order = [db.Books.timestamp.desc()]
@@ -778,9 +794,9 @@ def list_books():
             books = calibre_db.session.query(db.Books).filter(calibre_db.common_filters()).all()
         entries = calibre_db.get_checkbox_sorted(books, state, off, limit,order)
     elif search:
-        entries, filtered_count, __ = calibre_db.get_search_results(search, off, order, limit)
+        entries, filtered_count, __ = calibre_db.get_search_results(search, off, order, limit, *join)
     else:
-        entries, __, __ = calibre_db.fill_indexpage((int(off) / (int(limit)) + 1), limit, db.Books, True, order)
+        entries, __, __ = calibre_db.fill_indexpage((int(off) / (int(limit)) + 1), limit, db.Books, True, order, *join)
 
     for entry in entries:
         for index in range(0, len(entry.languages)):