diff --git a/sql-queries-5/String Concatenation and Aggregation in SQL/isnull.sql b/sql-queries-5/String Concatenation and Aggregation in SQL/isnull.sql
new file mode 100644
index 00000000..875ce998
--- /dev/null
+++ b/sql-queries-5/String Concatenation and Aggregation in SQL/isnull.sql	
@@ -0,0 +1 @@
+USE University; SELECT ISNULL(textbook, 'No textbook assigned') + ' for ' + ISNULL(name, 'Unknown Course') AS course_description FROM Course;