diff --git a/letsencrypt/client/apache/configurator.py b/letsencrypt/client/apache/configurator.py
index 12dac92a3..8b32cf7a7 100644
--- a/letsencrypt/client/apache/configurator.py
+++ b/letsencrypt/client/apache/configurator.py
@@ -60,7 +60,7 @@ class ApacheConfigurator(augeas_configurator.AugeasConfigurator):
     .. todo:: Add proper support for module configuration
 
     The API of this class will change in the coming weeks as the exact
-    needs of client's are clarified with the new and developing protocol.
+    needs of clients are clarified with the new and developing protocol.
 
     :ivar str server_root: Path to Apache root directory
     :ivar dict location: Path to various files associated
@@ -230,7 +230,7 @@ class ApacheConfigurator(augeas_configurator.AugeasConfigurator):
 
         # No matches, search for the default
         for vhost in self.vhosts:
-            if "_defualt_:443" in vhost.addrs:
+            if "_default_:443" in vhost.addrs:
                 return vhost
         return None
 
@@ -762,7 +762,7 @@ class ApacheConfigurator(augeas_configurator.AugeasConfigurator):
                     return vhost
         return None
 
-    # TODO: Handle ths as outlined in Interfaces.
+    # TODO: Handle this as outlined in Interfaces.
     def enable_ocsp_stapling(self, ssl_vhost):
         """Enable OCSP Stapling."""
         return False
@@ -772,7 +772,7 @@ class ApacheConfigurator(augeas_configurator.AugeasConfigurator):
         return False
 
     def get_all_certs_keys(self):
-        """ Find all existing keys, certs from configuration.
+        """Find all existing keys, certs from configuration.
 
         Retrieve all certs and keys set in VirtualHosts on the Apache server
 
@@ -945,7 +945,7 @@ class ApacheConfigurator(augeas_configurator.AugeasConfigurator):
         return None
 
     def dvsni_perform(self, chall_dict):
-        """Peform a DVSNI challenge.
+        """Perform a DVSNI challenge.
 
         `chall_dict` composed of:
 
diff --git a/letsencrypt/client/apache/parser.py b/letsencrypt/client/apache/parser.py
index f2516a49e..d902bfe19 100644
--- a/letsencrypt/client/apache/parser.py
+++ b/letsencrypt/client/apache/parser.py
@@ -98,7 +98,7 @@ class ApacheParser(object):
 
         :param str directive: Directive to look for
 
-        :param arg: Specific value direcitve must have, None if all should
+        :param arg: Specific value directive must have, None if all should
                     be considered
         :type arg: str or None
 
diff --git a/letsencrypt/client/crypto_util.py b/letsencrypt/client/crypto_util.py
index 04a8ac373..c11719343 100644
--- a/letsencrypt/client/crypto_util.py
+++ b/letsencrypt/client/crypto_util.py
@@ -28,10 +28,10 @@ def create_sig(msg, key_str, nonce=None, nonce_len=CONFIG.NONCE_SIZE):
     :param str msg: Message to be signed
 
     :param nonce: Nonce to be used. If None, nonce of `nonce_len` size
-                  will be randomly genereted.
+                  will be randomly generated.
     :type nonce: str or None
 
-    :param int nonce_len: Size of the automaticaly generated nonce.
+    :param int nonce_len: Size of the automatically generated nonce.
 
     :returns: Signature.
     :rtype: dict
diff --git a/letsencrypt/client/le_util.py b/letsencrypt/client/le_util.py
index 42f88bc5d..d96dc8c09 100644
--- a/letsencrypt/client/le_util.py
+++ b/letsencrypt/client/le_util.py
@@ -10,8 +10,8 @@ from letsencrypt.client import errors
 def make_or_verify_dir(directory, mode=0o755, uid=0):
     """Make sure directory exists with proper permissions.
 
-    :param str directory: Path to a directry.
-    :param int mode: Diretory mode.
+    :param str directory: Path to a directory.
+    :param int mode: Directory mode.
     :param int uid: Directory owner.
 
     :raises LetsEncryptClientError: if a directory already exists,
@@ -28,7 +28,7 @@ def make_or_verify_dir(directory, mode=0o755, uid=0):
         if exception.errno == errno.EEXIST:
             if not check_permissions(directory, mode, uid):
                 raise errors.LetsEncryptClientError(
-                    '%s exists and does not contain the proper '
+                    '%s exists, but does not have the proper '
                     'permissions or owner' % directory)
         else:
             raise
@@ -107,7 +107,7 @@ def jose_b64decode(data):
     :returns: Decoded data.
 
     :raises TypeError: if input is of incorrect type
-    :raises ValueError: if unput is unicode with non-ASCII characters
+    :raises ValueError: if input is unicode with non-ASCII characters
 
     """
     if isinstance(data, unicode):
diff --git a/letsencrypt/client/network.py b/letsencrypt/client/network.py
index 855008b6b..b1548b687 100644
--- a/letsencrypt/client/network.py
+++ b/letsencrypt/client/network.py
@@ -80,14 +80,14 @@ class Network(object):
                 'Expected message (%s) not received' % expected)
 
     def is_expected_msg(self, response, expected, delay=3, rounds=20):
-        """Is reponse expected ACME message?
+        """Is response expected ACME message?
 
         :param dict response: ACME response message from server.
         :param str expected: Name of the expected response ACME message type.
         :param int delay: Number of seconds to delay before next round
             in case of ACME "defer" response message.
         :param int rounds: Number of resend attempts in case of ACME "defer"
-            reponse message.
+            response message.
 
         :returns: ACME response message from server.
         :rtype: dict
diff --git a/letsencrypt/client/recovery_contact_challenge.py b/letsencrypt/client/recovery_contact_challenge.py
index d5cd5f889..6bafed829 100644
--- a/letsencrypt/client/recovery_contact_challenge.py
+++ b/letsencrypt/client/recovery_contact_challenge.py
@@ -14,7 +14,7 @@ from letsencrypt.client import interfaces
 
 
 class RecoveryContact(object):
-    """Recovery Contact Identitifier Validation Challenge.
+    """Recovery Contact Identifier Validation Challenge.
 
     Based on draft-barnes-acme, section 6.3.