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diff --git a/docs/providers/custom.rst b/docs/providers/custom.rst
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+Writing custom providers
+------------------------
+
+List of *Objects* providers could be widened with custom providers.
+
+Below are some tips and recommendations that have to be met:
+
+    1. Every custom provider has to extend base provider class -
+       ``objects.providers.Provider``.
+    2. Cusom provider's ``__init__()`` could be overriden with only condition: 
+       parent initializer (``objects.providers.Provider.__init__()``) has
+       to be called.
+    3. Providing strategy has to be implemented in custom provider's 
+       ``_provide()`` method. All ``*args`` & ``**kwargs`` that will be
+       recieved by ``objects.providers.Provider.__call__()`` will be transefed 
+       to custom provider's ``_provide()``. 
+    4. If custom provider is based on some standard providers, it is better to
+       use delegation of standard providers, then extending of them.
+    5. If custom provider defines any attributes, it is good to list them in 
+       ``__slots__`` attribute (as *Objects* does). It can save some memory.
+    6. If custom provider deals with injections (e.g. ``Factory``, 
+       ``Singleton`` providers), it is strongly recommended to use 
+       ``objects.injections.Injection`` and its subclasses:
+       ``objects.injections.KwArg``, ``objects.injections.Attribute`` and 
+       ``objects.injections.Method``. 
+
+Example:
+
+.. image:: /images/providers/custom_provider.png
+    :width: 100%
+    :align: center
+
+.. code-block:: python
+
+    """Custom `Factory` example."""
+
+    from objects.providers import Provider
+    from objects.providers import Factory
+
+
+    class User(object):
+
+        """Example class User."""
+
+
+    class UsersFactory(Provider):
+
+        """Example users factory."""
+
+        __slots__ = ('_factory',)
+
+        def __init__(self):
+            """Initializer."""
+            self._factory = Factory(User)
+            super(UsersFactory, self).__init__()
+
+        def _provide(self, *args, **kwargs):
+            """Return provided instance."""
+            return self._factory(*args, **kwargs)
+
+
+    # Users factory:
+    users_factory = UsersFactory()
+
+    # Creating several User objects:
+    user1 = users_factory()
+    user2 = users_factory()
+
+    # Making some asserts:
+    assert isinstance(user1, User)
+    assert isinstance(user2, User)
+    assert user1 is not user2
+
diff --git a/examples/providers/custom_factory.py b/examples/providers/custom_factory.py
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+"""Custom `Factory` example."""
+
+from objects.providers import Provider
+from objects.providers import Factory
+
+
+class User(object):
+
+    """Example class User."""
+
+
+class UsersFactory(Provider):
+
+    """Example users factory."""
+
+    __slots__ = ('_factory',)
+
+    def __init__(self):
+        """Initializer."""
+        self._factory = Factory(User)
+        super(UsersFactory, self).__init__()
+
+    def _provide(self, *args, **kwargs):
+        """Return provided instance."""
+        return self._factory(*args, **kwargs)
+
+
+# Users factory:
+users_factory = UsersFactory()
+
+# Creating several User objects:
+user1 = users_factory()
+user2 = users_factory()
+
+# Making some asserts:
+assert isinstance(user1, User)
+assert isinstance(user2, User)
+assert user1 is not user2