diff --git a/url2markdown/header.py b/url2markdown/header.py
new file mode 100644
index 0000000..b08064d
--- /dev/null
+++ b/url2markdown/header.py
@@ -0,0 +1,19 @@
+def _get_topics_from_cli():
+    pass
+
+
+def _build_header_dict(article):
+    header = {}
+    header['topics'] = _get_topics_from_cli()
+    if article.authors:
+        header['authors'] = article.authors
+    if article.keywords:
+        header['topics'].append(article.keywords)
+    if not header['topics']:
+        header['topics'] = ['to_categorise']
+    return header
+
+
+def build_header(header):
+    yaml = ""
+    return yaml