diff --git a/.gitignore b/.gitignore
index 211b061..4e550cf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -132,4 +132,8 @@ dmypy.json
 .github/templates/*
 
 # History
-.history
\ No newline at end of file
+.history
+
+# Project files
+sketch*
+ukp_project_template/sketch*
\ No newline at end of file
diff --git a/README.md b/README.md
index 66bcff3..441b6c2 100644
--- a/README.md
+++ b/README.md
@@ -48,15 +48,24 @@ pip install -r requirements-dev.txt # Only needed for development
 
 ### Using the classes
 
-This is how you can use classes inside `ukp_project_template`: 
+To import classes/methods of `ukp_project_template` from inside the package itself you can use relative imports: 
 
 ```py
-from ukp_project_template import BaseClass
-from ukp_project_template import base_function
+from .base import BaseClass # Notice how I omit the package name
 
-BaseClass().base_method()
-base_function()
+BaseClass().something()
 ```
+
+To import classes/methods from outside the package (e.g. when you want to use the package in some other project) you can instead refer to the package name:
+
+```py
+from ukp_project_template import BaseClass # Notice how I omit the file name
+from ukp_project_template.subpackage import SubPackageClass # Here it's necessary because it's a subpackage
+
+BaseClass().something()
+SubPackageClass().something()
+```
+
 ### Using scripts
 
 This is how you can use `ukp_project_template` from command line:
diff --git a/tests/test_base.py b/tests/test_base.py
index 30265ba..6eac760 100644
--- a/tests/test_base.py
+++ b/tests/test_base.py
@@ -1,5 +1,6 @@
 # Tests are defined here
 from ukp_project_template import BaseClass
+from ukp_project_template.subpackage import SubPackageClass
 
 def test_template():
     assert True
@@ -10,4 +11,12 @@ def test_base_class():
 
     assert str(bc1) == "test1"
     assert repr(bc1) == "test1"
-    assert bc1 != bc2
\ No newline at end of file
+    assert bc1 != bc2
+    assert bc1.something() == "something"
+
+def test_subpackage():
+    spc = SubPackageClass(name="test")
+
+    assert str(spc) == "SubPackage - test"
+    assert repr(spc) == "SubPackage - test"
+    assert spc.something() == "SubPackage - something"
\ No newline at end of file
diff --git a/ukp_project_template/__init__.py b/ukp_project_template/__init__.py
index 19ff72d..4003b3e 100644
--- a/ukp_project_template/__init__.py
+++ b/ukp_project_template/__init__.py
@@ -1,5 +1,8 @@
 from .base import BaseClass
 
+
+
 __all__ = [
+    "subpackage",
     "BaseClass"
     ]
\ No newline at end of file
diff --git a/ukp_project_template/__main__.py b/ukp_project_template/__main__.py
index 6c08406..c6bc87c 100644
--- a/ukp_project_template/__main__.py
+++ b/ukp_project_template/__main__.py
@@ -1,6 +1,6 @@
 """Entry point for ukp_project_template."""
 
-from ukp_project_template.cli import main  # pragma: no cover
+from .cli import main  # pragma: no cover
 
 if __name__ == "__main__":  # pragma: no cover
     main()
diff --git a/ukp_project_template/base.py b/ukp_project_template/base.py
index 33440b0..7ecc6ac 100644
--- a/ukp_project_template/base.py
+++ b/ukp_project_template/base.py
@@ -54,3 +54,9 @@ def __eq__(self, other):
             True if the entities are equal, False otherwise.
         """
         return self.name == other.name
+
+    def something(self):
+        """
+        Does something.
+        """
+        return "something"
diff --git a/ukp_project_template/cli.py b/ukp_project_template/cli.py
index 8a75aef..325b7c9 100644
--- a/ukp_project_template/cli.py
+++ b/ukp_project_template/cli.py
@@ -7,7 +7,8 @@
 - Start a web application
 - Import things from your .base module
 """
-
+from .base import BaseClass
+from .subpackage import SubPackageClass
 
 def main():  # pragma: no cover
     """
@@ -25,4 +26,8 @@ def main():  # pragma: no cover
         * List all available tasks
         * Run an application (Flask, FastAPI, Django, etc.)
     """
-    print("This will do something")
+    bc = BaseClass("test")
+    print(f"This will do something: {bc.something()}")
+
+    spc = SubPackageClass("test")
+    print(f"This will do something else: {spc.something()}")
diff --git a/ukp_project_template/subpackage/__init__.py b/ukp_project_template/subpackage/__init__.py
new file mode 100644
index 0000000..bf2baf1
--- /dev/null
+++ b/ukp_project_template/subpackage/__init__.py
@@ -0,0 +1,5 @@
+from .subpackage import SubPackageClass
+
+__all__ = [
+    "SubPackageClass"
+]
\ No newline at end of file
diff --git a/ukp_project_template/subpackage/subpackage.py b/ukp_project_template/subpackage/subpackage.py
new file mode 100644
index 0000000..c676ed5
--- /dev/null
+++ b/ukp_project_template/subpackage/subpackage.py
@@ -0,0 +1,15 @@
+class SubPackageClass:
+    def __init__(self, name):
+        self.name = name
+    
+    def __str__(self):
+        return f"SubPackage - {self.name}"
+    
+    def __repr__(self):
+        return f"SubPackage - {self.name}"
+    
+    def __eq__(self, other):
+        return self.name == other.name
+    
+    def something(self):
+        return "SubPackage - something"
\ No newline at end of file