diff --git a/Article Views I b/Article Views I
new file mode 100644
index 0000000..5399df6
--- /dev/null
+++ b/Article Views I	
@@ -0,0 +1,5 @@
+import pandas as pd
+
+def article_views(views: pd.DataFrame) -> pd.DataFrame:
+    df = views[views['author_id'] == views['viewer_id']]
+    return df[['viewer_id']].drop_duplicates().sort_values(by='viewer_id').rename(columns = {'viewer_id': 'id'})
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diff --git a/Invalid Tweets b/Invalid Tweets
new file mode 100644
index 0000000..6f96c7c
--- /dev/null
+++ b/Invalid Tweets	
@@ -0,0 +1,5 @@
+import pandas as pd
+
+def invalid_tweets(tweets: pd.DataFrame) -> pd.DataFrame:
+    df = tweets[tweets['content'].str.len() > 15]
+    return df[['tweet_id']]
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