ค้นหาชื่อศิลปินชื่อดังที่ไม่มีเล่มใดเลย
Find the famous titles of artists that do not have any volume.
df_volume = pd.DataFrame(columns=['Famous_Title', 'Artist_ID']); df_artist = pd.DataFrame(columns=['Famous_Title', 'Artist_ID'])
df_artist[~df_artist['Artist_ID'].isin(df_volume['Artist_ID'])]['Famous_Title']