diff --git a/themes/writeonly/layouts/partials/shared/post-isbn.html b/themes/writeonly/layouts/partials/shared/post-isbn.html
index 18b071e..466d47a 100644
--- a/themes/writeonly/layouts/partials/shared/post-isbn.html
+++ b/themes/writeonly/layouts/partials/shared/post-isbn.html
@@ -2,7 +2,15 @@
{{ with .Params.ISBN }}
- -> ISBN {{ . }}
+ ISBN {{ . }}
+
+ {{ end }}
+ {{ with .Params.ISBNS }}
+
+ {{ range . }}
+
+ ISBN {{ . }}
+ {{ end }}
{{ end }}