diff --git a/src/com/generation/model/Person.java b/src/com/generation/model/Person.java
index 56cb7fd..728609c 100644
--- a/src/com/generation/model/Person.java
+++ b/src/com/generation/model/Person.java
@@ -43,6 +43,6 @@ public Date getBirthDate()
     @Override
     public String toString()
     {
-        return id + '\'' + ", name='" + name + '\'' + ", email='" + email + '\'' + ", birthDate=" + birthDate;
+        return "'"+ id + '\'' + ", name='" + name + '\'' + ", email='" + email + '\'' + ", birthDate=" + birthDate;
     }
 }
diff --git a/src/com/generation/service/StudentService.java b/src/com/generation/service/StudentService.java
index f980e40..bbe44da 100644
--- a/src/com/generation/service/StudentService.java
+++ b/src/com/generation/service/StudentService.java
@@ -2,6 +2,7 @@
 
 import com.generation.model.Course;
 import com.generation.model.Student;
+import java.util.*;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -26,7 +27,9 @@ public Student findStudent( String studentId )
 
     public void showSummary()
     {
-        //TODO implement
+       for(Student student : students.values()) {
+           System.out.println(student);
+       }
     }
 
     public void enrollToCourse( String studentId, Course course )
diff --git a/src/com/generation/utils/PrinterHelper.java b/src/com/generation/utils/PrinterHelper.java
index 6f1ca9b..cf5a4fd 100644
--- a/src/com/generation/utils/PrinterHelper.java
+++ b/src/com/generation/utils/PrinterHelper.java
@@ -37,10 +37,21 @@ public static Student createStudentMenu( Scanner scanner )
         String id = scanner.next();
         System.out.println( "| Enter student email:                |" );
         String email = scanner.next();
-        System.out.println( "| Enter student birth date(mm/dd/yyyy)|" );
-        DateFormat formatter = new SimpleDateFormat( "mm/dd/yyyy");
+        boolean isCorrectDateFormat = false;
+        Date birthDate = null;
+
+        while(!isCorrectDateFormat) {
+            System.out.println( "| Enter student birth date(mm/dd/yyyy)|" );
+            DateFormat formatter = new SimpleDateFormat( "mm/dd/yyyy");
+            try{
+                birthDate = formatter.parse( scanner.next());
+                isCorrectDateFormat = true;
+            } catch(Exception ex) {
+                System.out.println( "| Invalid date format, please try again with the correct format (mm/dd/yyyy)|" );
+            }
+        }
+
         //TODO validate date format and catch exception to avoid crash
-        Date birthDate = formatter.parse( scanner.next());
         System.out.println( "|-------------------------------------|" );
         Student student = new Student( id, name, email, birthDate );
         System.out.println( "Student Successfully Registered! " );