--- /dev/null
+{% for index, authors in books_nav.items %}
+ <ul>
+ <li><a class="book-list-index" href="#">{{ index|upper }}</a></li>
+ <ul class="book-list-show-index">
+ {% for author in authors %}
+ <li><a href="#{{ author.slug }}">{{ author }}</a></li>
+ {% endfor %}
+ </ul>
+ </ul>
+{% endfor %}