diff --git a/modules/systems/state_machine/state.gd b/modules/systems/state_machine/state.gd
index a3afd99..bedfcf3 100644
--- a/modules/systems/state_machine/state.gd
+++ b/modules/systems/state_machine/state.gd
@@ -1,3 +1,8 @@
+"""
+	Defines the State class. This class is an interface that defines methods to
+be overriden by the implementations to be used by the State Machine class.
+"""
+
 class_name State
 extends Node
 
diff --git a/modules/systems/state_machine/state_machine.gd b/modules/systems/state_machine/state_machine.gd
index dc438fe..61f2720 100644
--- a/modules/systems/state_machine/state_machine.gd
+++ b/modules/systems/state_machine/state_machine.gd
@@ -1,3 +1,8 @@
+"""
+	Defines the State Machine class. This class handles the lifecycle of the
+states that implement the gameplay.
+"""
+
 class_name StateMachine
 extends Node