{{- define "partials/author-list.html" -}}
  {{- $authors := . -}}
  {{- if and (ne $authors nil) (gt (len $authors) 0) -}}
  <span class="authors list">
    {{- " by " -}}
    {{- range $i, $a := $authors -}}
      {{- if and (ne $i 0) (eq (add $i 1) (len $authors)) -}}and {{ end -}}
      <a href="{{ $a.url }}" target="_blank">{{ $a.name }}</a>
      {{- if ne (add $i 1) (len $authors) -}}, {{ end -}}
    {{- end -}}
  </span>
  {{- end -}}
{{- end -}}

{{- if .cover -}}
  <figure class="book">
    <a href="{{ .url }}" target="_blank" title="Open book details">
      {{- $title := .title -}}
      {{- with .cover -}}
        <img src="{{ .RelPermalink }}" width="{{ .Width }}" height="{{ .Height }}" alt="The cover of the book {{ $title }}">
      {{- end -}}
    </a>

    <figcaption>
      <a href="{{ .url }}" target="_blank" title="Open book details">{{ .title }}</a>
      {{- partial "partials/author-list.html" .authors -}}
    </figcaption>
  </figure>
{{- else -}}
  <a href="{{ .url }}" target="_blank" title="Open book details">{{ .title }}</a>
  {{- partial "partials/author-list.html" .authors -}}
{{- end -}}