diff --git a/docs/source/overview.md b/docs/source/overview.md
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--- a/docs/source/overview.md
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@@ -242,6 +242,23 @@ Data concatenation within CytoTable typically occurs using a [ParquetWriter](htt
 <tr><td>1</td><td>a</td><td>0.01</td><td>2024-01-01</td></tr>
 </table>
 
+</td>
+</tr>
+<tr >
+<td colspan="2" style="text-align:center;font-weight:bold;">
+Join Specification in SQL
+</td>
+</tr>
+<tr >
+<td colspan="2">
+
+```sql
+SELECT *
+FROM Table_1
+LEFT JOIN Table_2 ON
+Table_1.Col_A = Table_2.Col_A;
+```
+
 </td>
 </tr>
 </table>