diff --git a/Roadmap/09 - HERENCIA/python/ggilperez.py b/Roadmap/09 - HERENCIA/python/ggilperez.py
new file mode 100644
index 0000000000..d72c2b3f6c
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+++ b/Roadmap/09 - HERENCIA/python/ggilperez.py	
@@ -0,0 +1,96 @@
+# Problem 09 inheritance
+
+class Animal:
+
+    def speak(self):
+        raise NotImplementedError()
+
+
+class Dog(Animal):
+
+    def speak(self):
+        print("Goof Goof")
+
+
+class Cat(Animal):
+
+    def speak(self):
+        print("Meow!")
+
+
+dog = Dog()
+dog.speak()
+
+cat = Cat()
+cat.speak()
+
+
+# Extra
+
+class Employee:
+
+    def __init__(self, identifier, name):
+        self.id = identifier
+        self.name = name
+        self.employees = []
+
+    def show_employees(self):
+        print(f"'{self.name} ({self.id})' employees:")
+        for employee in self.employees:
+            print(employee.name)
+
+    def add_employee(self, employee):
+        self.employees.append(employee)
+
+
+class Manager(Employee):
+
+    def __init__(self, identifier, name):
+        super().__init__(identifier, name)
+
+    def current_job(self):
+        print(f"Manager '{self.name} ({self.id})' in charge of all the projects.")
+
+
+class ProjectManager(Employee):
+
+    def __init__(self, identifier, name, project):
+        super().__init__(identifier, name)
+        self.project = project
+
+    def current_job(self):
+        print(f"PM '{self.name} ({self.id})' in charge of '{self.project}' project.")
+
+
+class Developer(Employee):
+
+    def __init__(self, identifier, name, language):
+        super().__init__(identifier, name)
+        self.language = language
+
+    def current_job(self):
+        print(f"Developer '{self.name} ({self.id})' programs in '{self.language}'.")
+
+    def show_employees(self):
+        print("Developers can have other employees in charge.")
+
+    def add_employee(self, employee):
+        print("Developers can have other employees in charge.")
+
+
+manager = Manager(1, "Foo")
+pm = ProjectManager(2, "Bar", "Proyectito")
+dev = Developer(3, "FB", "Python")
+
+manager.add_employee(pm)
+manager.add_employee(dev)
+manager.show_employees()
+manager.current_job()
+
+pm.current_job()
+pm.add_employee(dev)
+pm.show_employees()
+
+dev.current_job()
+dev.add_employee(pm)
+dev.show_employees()