diff --git a/flaschengeist/modules/auth/__init__.py b/flaschengeist/modules/auth/__init__.py
index c19e4a9..5c279b3 100644
--- a/flaschengeist/modules/auth/__init__.py
+++ b/flaschengeist/modules/auth/__init__.py
@@ -2,13 +2,13 @@
 
 Allow management of authentication, login, logout, etc.
 
-                     Routes
+  Routes
 
-/auth           POST: login (new token)
+  /auth           POST: login (new token)
                  GET: get all tokens for user
-/auth/<token>    GET: get lifetime of token
+  /auth/<token>    GET: get lifetime of token
                  PUT: set new lifetime
-              DELETE: logout / delete token
+                DELETE: logout / delete token
 """
 
 from flask import Blueprint, request, jsonify
@@ -29,12 +29,14 @@ class AuthRoutePlugin(Plugin):
 
 @auth_bp.route("/auth", methods=["POST"])
 def _login():
-    """Login User
+    """Login in an user and create a `flaschengeist.system.models.Session` for the user.
+
+    Route: /auth
+    POST-data: {'userid': string, 'password': string}
 
-    Login in User and create a Session for the User.
-    Requires POST data {'userid': string, 'password': string}
     Returns:
-        A JSON-File with user information and created token or errors
+        A JSON object with `flaschengeist.system.models.user.User` and created
+        `flaschengeist.system.models.session.Session` or HTTP error
     """
     logger.debug("Start log in.")
     data = request.get_json()
@@ -48,7 +50,6 @@ def _login():
     user = userController.login_user(userid, password)
     if not user:
         raise Unauthorized
-    logger.debug("user is {{ {} }}".format(user))
     session = sessionController.create(user, user_agent=request.user_agent)
     logger.debug("token is {{ {} }}".format(session.token))
     logger.info("User {{ {} }} success login.".format(userid))