diff --git a/Doc/faq.rst b/Doc/faq.rst
index 511735a..58bb81e 100644
--- a/Doc/faq.rst
+++ b/Doc/faq.rst
@@ -24,7 +24,7 @@ Usage
   **A0**: Yes, from 3.0 on.
 
   **A1**. For earlier versions, there's `pyldap`_, an independent fork
-  now merged into pyhon-ldap.
+  now merged into python-ldap.
 
 .. _pyldap: https://pypi.python.org/pypi/pyldap
 
diff --git a/Doc/index.rst b/Doc/index.rst
index aa93092..f478d10 100644
--- a/Doc/index.rst
+++ b/Doc/index.rst
@@ -63,7 +63,7 @@ Contents
 Bytes/text management
 ---------------------
 
-The LDAP protocol states that some fields (distinguised names, relative distinguished names,
+The LDAP protocol states that some fields (distinguished names, relative distinguished names,
 attribute names, queries) be encoded in UTF-8; some other (mostly attribute *values*) **MAY**
 contain any type of data, and thus be treated as bytes.
 
diff --git a/Doc/installing.rst b/Doc/installing.rst
index cc0ee01..c78bd7f 100644
--- a/Doc/installing.rst
+++ b/Doc/installing.rst
@@ -60,7 +60,7 @@ to get up to date information which versions are available.
 Windows
 -------
 
-Unoficial packages for Windows are available on
+Unofficial packages for Windows are available on
 `Christoph Gohlke's page <https://www.lfd.uci.edu/~gohlke/pythonlibs/>`_.
 
 
diff --git a/Doc/reference/ldap.rst b/Doc/reference/ldap.rst
index c80e386..8844e59 100644
--- a/Doc/reference/ldap.rst
+++ b/Doc/reference/ldap.rst
@@ -40,7 +40,7 @@ This module defines the following functions:
    when using multiple URIs you cannot determine to which URI your client
    gets connected.
 
-   Note that internally the OpenLDAP funtion
+   Note that internally the OpenLDAP function
    `ldap_initialize(3) <https://www.openldap.org/software/man.cgi?query=ldap_init&sektion=3>`_
    is called which just initializes the LDAP connection struct in the C API
    - nothing else. Therefore the first call to an operation method (bind,
@@ -141,7 +141,7 @@ following option identifiers are defined as constants:
 
 .. py:data:: OPT_DEREF
 
-   Specifies how alias derefencing is done within the underlying LDAP C lib.
+   Specifies how alias dereferencing is done within the underlying LDAP C lib.
 
 .. py:data:: OPT_ERROR_STRING
 
@@ -296,7 +296,7 @@ The module defines the following exceptions:
 
 .. py:exception:: LDAPError
 
-   This is the base class of all execeptions raised by the module :py:mod:`ldap`.
+   This is the base class of all exceptions raised by the module :py:mod:`ldap`.
    Unlike the C interface, errors are not returned as result codes, but
    are instead turned into exceptions, raised as soon an the error condition
    is detected.
@@ -413,7 +413,7 @@ The module defines the following exceptions:
 
 .. py:exception:: IS_LEAF
 
-   The object specified is a leaf of the diretcory tree.
+   The object specified is a leaf of the directory tree.
    Sets the :py:const:`matched` field of the exception dictionary value.
 
 .. py:exception:: LOCAL_ERROR
@@ -836,7 +836,7 @@ and wait for and return with the server's result, or with
 
    This method is used to wait for and return the result of an operation
    previously initiated by one of the LDAP *asynchronous* operations
-   (eg :py:meth:`search()`, :py:meth:`modify()`, etc.)
+   (e.g. :py:meth:`search()`, :py:meth:`modify()`, etc.)
 
    The *msgid* parameter is the integer identifier returned by that method.
    The identifier is guaranteed to be unique across an LDAP session,
diff --git a/Doc/reference/ldapurl.rst b/Doc/reference/ldapurl.rst
index c13061c..86d0817 100644
--- a/Doc/reference/ldapurl.rst
+++ b/Doc/reference/ldapurl.rst
@@ -9,7 +9,7 @@
 
 This module parses and generates LDAP URLs.    It is implemented in pure Python
 and does not rely on any  non-standard modules. Therefore it can be used stand-
-alone without  the rest of the python-ldap package.    Compability note: This
+alone without  the rest of the python-ldap package.  Compatibility note: This
 module has been solely tested on Python 2.x and above.
 
 .. seealso::
@@ -91,7 +91,7 @@ Example
 ^^^^^^^
 
 Important security advice:
-For security reasons you shouldn't specify passwords in LDAP URLs
+For security reasons you should not specify passwords in LDAP URLs
 unless you really know what you are doing.
 
 The following example demonstrates how to parse a LDAP URL
diff --git a/Lib/ldap/__init__.py b/Lib/ldap/__init__.py
index b22a6f4..7cb16b0 100644
--- a/Lib/ldap/__init__.py
+++ b/Lib/ldap/__init__.py
@@ -94,5 +94,5 @@ def release(self):
 
 # More constants
 
-# For compability of 2.3 and 2.4 OpenLDAP API
+# For compatibility of 2.3 and 2.4 OpenLDAP API
 OPT_DIAGNOSTIC_MESSAGE = OPT_ERROR_STRING
diff --git a/Lib/ldap/async.py b/Lib/ldap/async.py
index 0dd4940..23c5660 100644
--- a/Lib/ldap/async.py
+++ b/Lib/ldap/async.py
@@ -36,7 +36,7 @@ def __str__(self):
 
 class AsyncSearchHandler:
   """
-  Class for stream-processsing LDAP search results
+  Class for stream-processing LDAP search results
 
   Arguments:
 
diff --git a/Lib/ldap/constants.py b/Lib/ldap/constants.py
index c5ac6c1..4c109ac 100644
--- a/Lib/ldap/constants.py
+++ b/Lib/ldap/constants.py
@@ -288,7 +288,7 @@ class Str(Constant):
     TLSInt('OPT_X_TLS_PEERCERT', optional=True),
 
     # only available if OpenSSL supports it => might cause
-    # backward compability problems
+    # backward compatibility problems
     TLSInt('OPT_X_TLS_CRLCHECK', optional=True),
 
     TLSInt('OPT_X_TLS_CRLFILE', optional=True),
diff --git a/Lib/ldap/controls/__init__.py b/Lib/ldap/controls/__init__.py
index 932fa53..43b938d 100644
--- a/Lib/ldap/controls/__init__.py
+++ b/Lib/ldap/controls/__init__.py
@@ -96,7 +96,7 @@ class attributes
 class LDAPControl(RequestControl,ResponseControl):
   """
   Base class for combined request/response controls mainly
-  for backward-compability to python-ldap 2.3.x
+  for backward-compatibility to python-ldap 2.3.x
   """
 
   def __init__(self,controlType=None,criticality=False,controlValue=None,encodedControlValue=None):
diff --git a/Lib/ldap/controls/deref.py b/Lib/ldap/controls/deref.py
index d1b5ce9..762ab85 100644
--- a/Lib/ldap/controls/deref.py
+++ b/Lib/ldap/controls/deref.py
@@ -26,7 +26,7 @@
 # Request types
 #---------------------------------------------------------------------------
 
-# For compability with ASN.1 declaration in I-D
+# For compatibility with ASN.1 declaration in I-D
 AttributeList = AttributeDescriptionList
 
 class DerefSpec(univ.Sequence):
diff --git a/Lib/ldap/controls/psearch.py b/Lib/ldap/controls/psearch.py
index 91a5c24..74e40a3 100644
--- a/Lib/ldap/controls/psearch.py
+++ b/Lib/ldap/controls/psearch.py
@@ -40,13 +40,13 @@ class PersistentSearchControl(RequestControl):
   Implements the request control for persistent search.
 
   changeTypes
-    List of strings specifiying the types of changes returned by the server.
+    List of strings specifying the types of changes returned by the server.
     Setting to None requests all changes.
   changesOnly
     Boolean which indicates whether only changes are returned by the server.
   returnECs
     Boolean which indicates whether the server should return an
-    Entry Change Notication response control
+    Entry Change Notification response control
   """
 
   class PersistentSearchControlValue(univ.Sequence):
diff --git a/Lib/ldap/controls/sss.py b/Lib/ldap/controls/sss.py
index 5d4955d..a5312d2 100644
--- a/Lib/ldap/controls/sss.py
+++ b/Lib/ldap/controls/sss.py
@@ -126,7 +126,7 @@ def decodeControlValue(self, encoded):
             self.attributeType = attribute_type
         else:
             self.attributeType = None
-        # backward compability class attributes
+        # backward compatibility class attributes
         self.result = self.sortResult
         self.attribute_type_error = self.attributeType
 
diff --git a/Lib/ldap/controls/vlv.py b/Lib/ldap/controls/vlv.py
index 74d107b..9fea2f0 100644
--- a/Lib/ldap/controls/vlv.py
+++ b/Lib/ldap/controls/vlv.py
@@ -134,7 +134,7 @@ def decodeControlValue(self,encoded):
             self.contextID = str(context_id)
         else:
             self.contextID = None
-        # backward compability class attributes
+        # backward compatibility class attributes
         self.target_position = self.targetPosition
         self.content_count = self.contentCount
         self.result = self.virtualListViewResult
diff --git a/Lib/ldap/filter.py b/Lib/ldap/filter.py
index f5d9278..56665dc 100644
--- a/Lib/ldap/filter.py
+++ b/Lib/ldap/filter.py
@@ -3,7 +3,7 @@
 
 See https://www.python-ldap.org/ for details.
 
-Compability:
+Compatibility:
 - Tested with Python 2.0+
 """
 
diff --git a/Lib/ldap/ldapobject.py b/Lib/ldap/ldapobject.py
index 36f98cf..c5e62bd 100644
--- a/Lib/ldap/ldapobject.py
+++ b/Lib/ldap/ldapobject.py
@@ -647,7 +647,7 @@ def result(self,msgid=ldap.RES_ANY,all=1,timeout=None):
 
         This method is used to wait for and return the result of an
         operation previously initiated by one of the LDAP asynchronous
-        operation routines (eg search(), modify(), etc.) They all
+        operation routines (e.g. search(), modify(), etc.) They all
         returned an invocation identifier (a message id) upon successful
         initiation of their operation. This id is guaranteed to be
         unique across an LDAP session, and can be used to request the
diff --git a/Lib/ldap/sasl.py b/Lib/ldap/sasl.py
index b54bf2a..cc0a2ea 100644
--- a/Lib/ldap/sasl.py
+++ b/Lib/ldap/sasl.py
@@ -55,7 +55,7 @@ def callback(self, cb_id, challenge, prompt, defresult):
         The callback method will be called by the sasl_bind_s()
         method several times. Each time it will provide the id, which
         tells us what kind of information is requested (the CB_*
-        constants above). The challenge might be a short (english) text
+        constants above). The challenge might be a short (English) text
         or some binary string, from which the return value is calculated.
         The prompt argument is always a human-readable description string;
         The defresult is a default value provided by the sasl library
diff --git a/Lib/ldap/syncrepl.py b/Lib/ldap/syncrepl.py
index 8442726..35d4c45 100644
--- a/Lib/ldap/syncrepl.py
+++ b/Lib/ldap/syncrepl.py
@@ -484,7 +484,7 @@ def syncrepl_set_cookie(self, cookie):
 
     def syncrepl_get_cookie(self):
         """
-        Called by syncrepl_search() to retreive the cookie stored by syncrepl_set_cookie()
+        Called by syncrepl_search() to retrieve the cookie stored by syncrepl_set_cookie()
         """
         pass
 
diff --git a/Lib/ldif.py b/Lib/ldif.py
index 82c4e3f..aead2ef 100644
--- a/Lib/ldif.py
+++ b/Lib/ldif.py
@@ -209,7 +209,7 @@ def unparse(self,dn,record):
 def CreateLDIF(dn,record,base64_attrs=None,cols=76):
   """
   Create LDIF single formatted record including trailing empty line.
-  This is a compability function. Use is deprecated!
+  This is a compatibility function. Use is deprecated!
 
   dn
         string-representation of distinguished name
@@ -449,7 +449,7 @@ def parse_entry_records(self):
 
   def parse(self):
     """
-    Invokes LDIFParser.parse_entry_records() for backward compability
+    Invokes LDIFParser.parse_entry_records() for backward compatibility
     """
     return self.parse_entry_records() # parse()
 
@@ -633,7 +633,7 @@ def handle(self,dn,entry):
 def ParseLDIF(f,ignore_attrs=None,maxentries=0):
   """
   Parse LDIF records read from file.
-  This is a compability function. Use is deprecated!
+  This is a compatibility function. Use is deprecated!
   """
   ldif_parser = LDIFRecordList(
     f,ignored_attr_types=ignore_attrs,max_entries=maxentries,process_url_schemes=0
diff --git a/Lib/slapdtest.py b/Lib/slapdtest.py
index 182097a..948ec09 100644
--- a/Lib/slapdtest.py
+++ b/Lib/slapdtest.py
@@ -83,7 +83,7 @@ class SlapdObject(object):
 
     This class creates a temporary data store for slapd, runs it
     listening on a private Unix domain socket and TCP port,
-    and initialises it with a top-level entry and the root user.
+    and initializes it with a top-level entry and the root user.
 
     When a reference to an instance of this class is lost, the slapd
     server is shut down.
diff --git a/README b/README
index 2a88bf2..81db9bb 100644
--- a/README
+++ b/README
@@ -14,7 +14,7 @@ stuff (e.g. processing LDIF, LDAPURLs, LDAPv3 sub-schema, etc.).
 
 Not included: Direct BER support
 
-See INSTALL for version compability
+See INSTALL for version compatibility
 
 See TODO for planned features. Contributors welcome.