diff --git a/src/inventory/inventory.py b/src/inventory/inventory.py
index 37099c3..7f8ffaa 100644
--- a/src/inventory/inventory.py
+++ b/src/inventory/inventory.py
@@ -1,3 +1,4 @@
+"""Inventory class"""
 from .item import Item
 
 class Inventory:
diff --git a/src/inventory/item.py b/src/inventory/item.py
index 24aeefb..7882044 100644
--- a/src/inventory/item.py
+++ b/src/inventory/item.py
@@ -1,3 +1,4 @@
+"""Item class"""
 from ..signals import Signal
 
 class Item:
diff --git a/src/inventory/itemtypes/consumable.py b/src/inventory/itemtypes/consumable.py
index d71ace0..3b3186e 100644
--- a/src/inventory/itemtypes/consumable.py
+++ b/src/inventory/itemtypes/consumable.py
@@ -1,3 +1,4 @@
+"""Consumable class"""
 from .. import Item
 
 class Consumable(Item):
diff --git a/src/inventory/itemtypes/equipment.py b/src/inventory/itemtypes/equipment.py
index f618121..cfc97a0 100644
--- a/src/inventory/itemtypes/equipment.py
+++ b/src/inventory/itemtypes/equipment.py
@@ -1,3 +1,4 @@
+"""Equipment class"""
 from .. import Item
 
 class Equipment(Item):
diff --git a/src/inventory/itemtypes/stackable_item.py b/src/inventory/itemtypes/stackable_item.py
index 63d6148..1b8b800 100644
--- a/src/inventory/itemtypes/stackable_item.py
+++ b/src/inventory/itemtypes/stackable_item.py
@@ -1,3 +1,4 @@
+"""Stackable item class"""
 from .. import Item
 
 class StackableItem(Item):
diff --git a/src/inventory/itemtypes/weapon.py b/src/inventory/itemtypes/weapon.py
index c7830cf..724fe34 100644
--- a/src/inventory/itemtypes/weapon.py
+++ b/src/inventory/itemtypes/weapon.py
@@ -1,3 +1,4 @@
+"""Weapon class"""
 from . import Equipment
 
 class Weapon(Equipment):