<div class="columns">
    {% for book in books %}
    {% if forloop.counter0|divisibleby:"4" %}
</div>
<div class="columns">
        {% endif %}
    <div class="column is-narrow">
        <div class="box">
            <a href="/book/{{ book.id }}">
                {% include 'snippets/book_cover.html' with book=book %}
            </a>
            {% include 'snippets/rate_action.html' with user=request.user book=book %}
            {% include 'snippets/shelve_button.html' with book=book %}
        </div>
    </div>
    {% endfor %}
</div>