diff --git a/apns2/client.py b/apns2/client.py
index 8f8632f..7a869e5 100644
--- a/apns2/client.py
+++ b/apns2/client.py
@@ -21,11 +21,11 @@ class APNsClient(object):
         ssl_context.load_cert_chain(cert_file)
         self.__connection = HTTP20Connection(server, port, ssl_context=ssl_context)
 
-    def send_notification(self, token_hex, notification, prioriy=NotificationPriority.Immediate, topic=None):
-        json_payload = dumps(notification.dict(), ensure_ascii=False, separators=(',',':')).encode('utf-8')
+    def send_notification(self, token_hex, notification, priority=NotificationPriority.Immediate, topic=None):
+        json_payload = dumps(notification.dict(), ensure_ascii=False, separators=(',', ':')).encode('utf-8')
 
         headers = {
-            'apns-priority': prioriy.value
+            'apns-priority': priority.value
         }
         if topic:
             headers['apns-topic'] = topic
diff --git a/apns2/client.pyi b/apns2/client.pyi
index c5e4c5d..d4d47c1 100644
--- a/apns2/client.pyi
+++ b/apns2/client.pyi
@@ -13,5 +13,5 @@ class APNsClient(object):
     def send_notification(self,
                           token_hex: str,
                           notification: Payload,
-                          prioriy: NotificationPriority = NotificationPriority.Immediate,
+                          priority: NotificationPriority = NotificationPriority.Immediate,
                           topic: Optional[str] = None) -> None: ...
diff --git a/apns2/errors.py b/apns2/errors.py
index 0cd6ec8..6caaca3 100644
--- a/apns2/errors.py
+++ b/apns2/errors.py
@@ -3,12 +3,12 @@ class APNsException(Exception):
 
 
 class InternalException(APNsException):
-    """This exception should not thrown. If it is, please report this bug"""
+    """This exception should not be raised. If it is, please report this as a bug."""
     pass
 
 
 class BadPayloadException(APNsException):
-    """Something bad with payload"""
+    """Something bad with the payload."""
     pass