{% if books is not mapping %}

{% for book in books %} {% if book.sub_book_num is defined %} {% else %} {% endif %} {% endfor %}

Title	Author	Publisher	Condition	Owned	Covertype
{{book.title}}	{{book.title}}	{{ book.author[0]['surname'] }}, {{book.author[0]['firstnames']}}	{{ book.publisher[0]['name']}}	{% if book.condition == "Good" %} {% elif book.condition == "Average" %} {% else %} {% endif %}	{{ book.owned}}	{{ book.covertype}}

{% else %}

{{books.title}}, {{ books.author[0]['surname'] }}, {{books.author[0]['firstnames']}}

{% if books.sub_book is defined %}

sub_book is defined: {{books.sub_book}}

{% endif %} {% endif %}