diff --git a/Chapter_04/Chapter_04.sql b/Chapter_04/Chapter_04.sql
index f6858a0..cef39d3 100644
--- a/Chapter_04/Chapter_04.sql
+++ b/Chapter_04/Chapter_04.sql
@@ -64,7 +64,7 @@ VALUES
 SELECT * FROM date_time_types;
 
 -- Listing 4-5: Using the interval data type
--- Assumes script 4-4 has been run
+-- (Assumes Listing 4-4 has been run)
 
 SELECT
     timestamp_column,
diff --git a/Chapter_07/Chapter_07.sql b/Chapter_07/Chapter_07.sql
index d5a3a87..aa062e6 100644
--- a/Chapter_07/Chapter_07.sql
+++ b/Chapter_07/Chapter_07.sql
@@ -212,9 +212,7 @@ ORDER BY id;
 SELECT '2020' AS year,
        school_2020 AS school
 FROM district_2020
-
 UNION ALL
-
 SELECT '2035' AS year,
        school_2035
 FROM district_2035