diff --git a/src/alice.py b/src/chap10/alice.py
similarity index 100%
rename from src/alice.py
rename to src/chap10/alice.py
diff --git a/src/divison_calculator.py b/src/chap10/divison_calculator.py
similarity index 100%
rename from src/divison_calculator.py
rename to src/chap10/divison_calculator.py
diff --git a/src/pizza.py b/src/chap8/pizza.py
similarity index 100%
rename from src/pizza.py
rename to src/chap8/pizza.py
diff --git a/src/car.py b/src/chap9/car.py
similarity index 100%
rename from src/car.py
rename to src/chap9/car.py
diff --git a/src/dog.py b/src/chap9/dog.py
similarity index 100%
rename from src/dog.py
rename to src/chap9/dog.py