diff --git a/lesson_09/types/types_app/src/main/resources/data/montezb.json b/lesson_09/types/types_app/src/main/resources/data/montezb.json
index e2e097dc0..dd3faef81 100644
--- a/lesson_09/types/types_app/src/main/resources/data/montezb.json
+++ b/lesson_09/types/types_app/src/main/resources/data/montezb.json
@@ -89,4 +89,4 @@
     "column6": "1.4053257217166533E308",
     "column7": "xma7jpqg"
   }
-]
\ No newline at end of file
+]
diff --git a/lesson_28/db/db_app/src/main/java/com/codedifferently/lesson28/models/LibraryUserModel.java b/lesson_28/db/db_app/src/main/java/com/codedifferently/lesson28/models/LibraryUserModel.java
new file mode 100644
index 000000000..92ecf698e
--- /dev/null
+++ b/lesson_28/db/db_app/src/main/java/com/codedifferently/lesson28/models/LibraryUserModel.java
@@ -0,0 +1,19 @@
+package com.codedifferently.lesson28.models;
+
+public class LibraryUserModel {
+    private String id;
+    private String email;
+    private String firstName;
+    private String lastName;
+    private String password;
+    private Integer phoneNUmber;
+
+    public LibraryUserModel(String id, String email, String firstName, String lastName, String password, Integer phoneNUmber) {
+        this.id = id;
+        this.email = email;
+        this.firstName = firstName;
+        this.lastName = lastName;
+        this.password = password;
+        this .phoneNUmber = phoneNUmber;
+    }
+}
diff --git a/lesson_28/db/db_app/src/main/resources/queries/montezbradley.sql b/lesson_28/db/db_app/src/main/resources/queries/montezbradley.sql
new file mode 100644
index 000000000..a50906cb8
--- /dev/null
+++ b/lesson_28/db/db_app/src/main/resources/queries/montezbradley.sql
@@ -0,0 +1,22 @@
+SELECT 
+COUNT(*) As count
+FROM media_items
+GROUP BY type;
+
+SELECT 
+SUM(pages) as total_pages_checked_out
+FROM checked_out_items c 
+JOIN media_items m
+ON c.item_id = m.id;
+
+SELECT 
+g.email,
+g.name, 
+GROUP_CONCAT(c.item_id) AS checked_out_items
+FROM
+guests g 
+LEFT JOIN
+checked_out_items c ON g.email = c.email
+GROUP BY
+g.email, g.name, g.type;
+