diff --git a/README.rst b/README.rst
index 483db93d..f2a92364 100644
--- a/README.rst
+++ b/README.rst
@@ -10,7 +10,7 @@ univers: mostly universal version and version ranges comparison and conversion
    :target: https://www.python.org/downloads/release/python-380/
 
 
-**univers** was born out of the need for a mostly univeral way to store version
+**univers** was born out of the need for a mostly universal way to store version
 ranges and to compare two software package versions in VulnerableCode.
 
 Package version ranges and version constraints are useful and essential:
@@ -36,7 +36,7 @@ ecosystem.
 
 **univers** is different:
 
-- It tracks each ecosystem versionning scheme and how two versions are compared.
+- It tracks each ecosystem versioning scheme and how two versions are compared.
 
 - It support a growing number of package ecosystems versioning in a single
   library.
@@ -52,7 +52,7 @@ How does **univers** work ?
 ============================
 
 **univers** wraps, embeds and implements multiple version comparison libraries,
-each focused on a specific ecosystem versionning scheme.
+each focused on a specific ecosystem versioning scheme.
 
 For each scheme, **univers** provides an implementation for:
 
diff --git a/etc/scripts/README.rst b/etc/scripts/README.rst
index d8b00f98..c4e25ee1 100755
--- a/etc/scripts/README.rst
+++ b/etc/scripts/README.rst
@@ -118,7 +118,7 @@ See each command line --help option for details.
 * (TODO) **add_package.py** will add or update a Python package including wheels,
   sources and ABOUT files and this for multiple Python version and OSes(for use
   with upload_packages.py afterwards) You will need an Azure personal access
-  token for buidling binaries and an optional DejaCode API key to post and fetch
+  token for building binaries and an optional DejaCode API key to post and fetch
   new package versions there. TODO: explain how we use romp
 
 
diff --git a/etc/scripts/bootstrap.py b/etc/scripts/bootstrap.py
index 31f2f553..fece274e 100644
--- a/etc/scripts/bootstrap.py
+++ b/etc/scripts/bootstrap.py
@@ -87,7 +87,7 @@ def bootstrap(
     build_remotely=False,
 ):
     """
-    Boostrap a thirdparty Python packages directory from pip requirements.
+    Bootstrap a thirdparty Python packages directory from pip requirements.
 
     Fetch or build to THIRDPARTY_DIR all the wheels and source distributions for
     the pip ``--requirement-file`` requirements FILE(s). Build wheels compatible
diff --git a/etc/scripts/publish_files.py b/etc/scripts/publish_files.py
index 86693631..7ba67129 100644
--- a/etc/scripts/publish_files.py
+++ b/etc/scripts/publish_files.py
@@ -131,7 +131,7 @@ def create_or_update_release_and_upload_directory(
 
 
 TOKEN_HELP = (
-    "The Github personal acess token is used to authenticate API calls. "
+    "The Github personal access token is used to authenticate API calls. "
     "Required unless you set the GITHUB_TOKEN environment variable as an alternative. "
     "See for details: https://github.com/settings/tokens and "
     "https://docs.github.com/en/github/authenticating-to-github/creating-a-personal-access-token"
diff --git a/etc/scripts/utils_dejacode.py b/etc/scripts/utils_dejacode.py
index f28e2479..31adab47 100644
--- a/etc/scripts/utils_dejacode.py
+++ b/etc/scripts/utils_dejacode.py
@@ -87,7 +87,7 @@ def update_with_dejacode_data(distribution):
 
 def update_with_dejacode_about_data(distribution):
     """
-    Update the Distribution `distribution` wiht ABOUT code data fetched from
+    Update the Distribution `distribution` with ABOUT code data fetched from
     DejaCode. Return True if data was updated.
     """
     package_data = get_package_data(distribution)
diff --git a/etc/scripts/utils_thirdparty.py b/etc/scripts/utils_thirdparty.py
index e2778fe7..296842be 100644
--- a/etc/scripts/utils_thirdparty.py
+++ b/etc/scripts/utils_thirdparty.py
@@ -175,7 +175,7 @@ def fetch_wheels(
     Download all of the wheel of packages listed in the ``requirements_file``
     requirements file into ``dest_dir`` directory.
 
-    Only get wheels for the ``environment`` Enviromnent constraints. If the
+    Only get wheels for the ``environment`` Environment constraints. If the
     provided ``environment`` is None then the current Python interpreter
     environment is used implicitly.
 
@@ -1464,7 +1464,7 @@ def fetch_wheel(
     ):
         """
         Download a binary wheel of this package matching the ``environment``
-        Enviromnent constraints into ``dest_dir`` directory.
+        Environment constraints into ``dest_dir`` directory.
 
         Return the wheel filename if it was fetched, None otherwise.
 
@@ -2895,7 +2895,7 @@ def check_romp_is_configured():
         raise Exception(
             "ROMP_BUILD_REQUEST_URL, ROMP_DEFINITION_ID, "
             "ROMP_PERSONAL_ACCESS_TOKEN and ROMP_USERNAME "
-            "are required enironment variables."
+            "are required environment variables."
         )
 
 
diff --git a/src/univers/debian.py b/src/univers/debian.py
index b9520df4..ae90c596 100644
--- a/src/univers/debian.py
+++ b/src/univers/debian.py
@@ -232,7 +232,7 @@ def compare_strings_key(x):
 
 def compare_strings(version1, version2):
     """
-    Compare two version strings (upstream or revision) using Debain semantics
+    Compare two version strings (upstream or revision) using Debian semantics
     and return one of the following integer numbers:
         - -1 means version1 sorts before version2
         - 0 means version1 and version2 are equal
diff --git a/src/univers/gem.py b/src/univers/gem.py
index 36eb2a68..b59d32aa 100644
--- a/src/univers/gem.py
+++ b/src/univers/gem.py
@@ -9,7 +9,7 @@
 # Visit https://aboutcode.org and https://github.com/nexB/univers for support and download.
 
 # notes: This has been substantially modified and enhanced from the original
-# puppeteer code to extract the Ruby version hanlding code.
+# puppeteer code to extract the Ruby version handling code.
 # This code is in turn originally based and updated from the Rubygems code
 # Originally from https://github.com/rubygems/rubygems and
 # https://github.com/coi-gov-pl/puppeter
diff --git a/src/univers/version_constraint.py b/src/univers/version_constraint.py
index a9acd1ae..8ae3a3d9 100644
--- a/src/univers/version_constraint.py
+++ b/src/univers/version_constraint.py
@@ -254,7 +254,7 @@ def validate(cls, constraints):
     def simplify(cls, constraints):
         """
         Return a new simplified ``constraints`` list with duplicated constraints
-        removed. This includes removing exact duplicates adn redundant
+        removed. This includes removing exact duplicates and redundant
         constraints.
         """
         constraints = deduplicate(constraints)
diff --git a/src/univers/version_range.py b/src/univers/version_range.py
index 1f2f5285..9b2867a6 100644
--- a/src/univers/version_range.py
+++ b/src/univers/version_range.py
@@ -20,7 +20,7 @@
 @attr.s(frozen=True, order=False, eq=True, hash=True)
 class VersionRange:
     """
-    Base version range class. Subclasses must provide implememt.
+    Base version range class. Subclasses must provide implement.
     A VersionRange represents a list of constraints on the versions "timeline"
     of a package.
     """
@@ -38,7 +38,7 @@ class VersionRange:
     # PypiVersion. Subclasses MUST provide this.
     version_class = None
 
-    # A list of lists of VersionConstraint that are signposts on the versions
+    # A tuple of VersionConstraint that are signposts on the versions
     # timeline
     constraints = attr.ib(type=tuple, default=attr.Factory(tuple))
 
@@ -67,7 +67,7 @@ def from_natives(cls, strings):
     def to_native(self, *args, **kwargs):
         """
         Return a native range string for this VersionRange. Subclasses can
-        implement. Opetional ``args`` and ``kwargs`` allow subclass to require
+        implement. Optional ``args`` and ``kwargs`` allow subclass to require
         extra arguments (such as a package name that some scheme may require
         like for deb and rpm.)
         """
@@ -803,7 +803,7 @@ def from_native(cls, string):
                     vend = VersionConstraint(comparator="<", version=end_version)
                     constraints.extend([vstart, vend])
                 else:
-                    # mainline branch ranges are resolved to a singel constraint
+                    # mainline branch ranges are resolved to a single constraint
                     version = semantic_version.Version.coerce(vs)
                     constraint = VersionConstraint(comparator=">=", version=version)
                     constraints.append(constraint)
diff --git a/src/univers/versions.py b/src/univers/versions.py
index 82c81d30..429fed56 100644
--- a/src/univers/versions.py
+++ b/src/univers/versions.py
@@ -22,7 +22,7 @@
 Version classes encapsulating the details of each version syntax.
 For instance semver is a version syntax. Python and Debian use another syntax.
 
-Each subclass primary responsability to is be comparable and orderable
+Each subclass primary responsibility to is be comparable and orderable
 """
 
 # TODO: Add mozilla versions https://github.com/mozilla-releng/mozilla-version
@@ -99,7 +99,7 @@ def build_value(self, string):
 
     def satisfies(self, constraint):
         """
-        Return True is this Version satifies the ``constraint``
+        Return True is this Version satisfies the ``constraint``
         VersionConstraint. Satisfying means that this version is "within" the
         ``constraint``.
         """
@@ -155,7 +155,7 @@ class PypiVersion(Version):
     PEP 440 as implemented in packaging with fallback to "legacy"
     """
 
-    # TODO: ensure we deal with tripple equal
+    # TODO: ensure we deal with triple equal
 
     @classmethod
     def build_value(cls, string):
diff --git a/tests/test_gem.py b/tests/test_gem.py
index 5065bbd8..2a675bed 100644
--- a/tests/test_gem.py
+++ b/tests/test_gem.py
@@ -5,7 +5,7 @@
 # Visit https://aboutcode.org and https://github.com/nexB/univers for support and download.
 
 # notes: This has been substantially modified and enhanced from the original
-# puppeteer code to extract the Ruby version hanlding code.
+# puppeteer code to extract the Ruby version handling code.
 
 from univers.gem import GemRequirement
 from univers.gem import GemVersion
diff --git a/tests/test_maven_version.py b/tests/test_maven_version.py
index 5cfc6912..0aa121b8 100644
--- a/tests/test_maven_version.py
+++ b/tests/test_maven_version.py
@@ -219,7 +219,7 @@ def test_from_string(self):
             ("1-final", (1,)),
             ("1.0-CR", (1, ("rc",))),
             ("1-cr", (1, ("rc",))),
-            # test some transistion
+            # test some transition
             ("1.0-alpha1", (1, ("alpha", (1,)))),
             ("1.0-alpha2", (1, ("alpha", (2,)))),
             ("1.0.0alpha1", (1, ("alpha", (1,)))),
diff --git a/tests/test_rpm_vercmp.py b/tests/test_rpm_vercmp.py
index 3bc1925a..e3143a7c 100644
--- a/tests/test_rpm_vercmp.py
+++ b/tests/test_rpm_vercmp.py
@@ -22,7 +22,7 @@ def parse_rpmvercmp_tests(fobj, with_buggy_comparisons=True):
     """
     Yield triples (version1, version2, comparison result) describing the RPM
     version comparison tests found in the rpmvercmp.at test file-like  object at
-    ``fobj`` Optionally includ "buggy" upstream tests.
+    ``fobj`` Optionally include "buggy" upstream tests.
     """
     for line in fobj:
         line = line.strip()