{% spaceless %}
{% load i18n %}
+ {% load thumbnail %}
<div class="collection-box white-box">
<h2><a href="{{ collection.get_absolute_url }}">{{ collection }}</a></h2>
<div class="description">
<div class="covers">
{% for book in collection.get_books|slice:":6" %}
<a href="{{ book.get_absolute_url }}">
- <img src="{{ book.cover_thumb.url }}" alt="{{ book.pretty_title }}" title="{{ book.pretty_title }}">
+ <img src="{% thumbnail book.cover_clean '139x193' as th %}{{ th.url }}{% endthumbnail %}" alt="{{ book.pretty_title }}" title="{{ book.pretty_title }}">
</a>
{% endfor %}
</div>