diff --git a/CHANGELOG.md b/CHANGELOG.md
index 21f649a7..768d2c15 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -159,7 +159,7 @@
 ### 20151105
 
 * python-build: Add anaconda2-2.4.0 and anacondaa3-2.4.0
-* python-biuld: Add Portable PyPy 4.0 (#472)
+* python-build: Add Portable PyPy 4.0 (#472)
 
 ### 20151103
 
@@ -172,7 +172,7 @@
 * pyenv: Different behaviour when invoking .py script through symlink (#379, #404)
 * pyenv: Enabled Gitter on the project (#436, #444)
 * python-build: Add Jython 2.7.1b1
-* python-build: Install OpenSSL on OS X if no proper versionn is available (#429)
+* python-build: Install OpenSSL on OS X if no proper version is available (#429)
 
 ### 20150913
 
@@ -249,12 +249,12 @@
 #### 20150124
 
 * python-build: Import recent changes from ruby-build v20150112
-* python-build: Prevent adding `/Library/Python/X.X/site-packages` to `sys.path` whtn `--enable-framework` is enabled on OS X. Thanks @s1341 (#292)
+* python-build: Prevent adding `/Library/Python/X.X/site-packages` to `sys.path` when `--enable-framework` is enabled on OS X. Thanks @s1341 (#292)
 * python-build: Add new IronPython release; 2.7.5
 
 #### 20141211
 
-* pyenv: Add bulit-in `pip-rehash` feature. You don't need to install [pyenv-pip-rehash](https://github.com/yyuu/pyenv-pip-rehash) anymore.
+* pyenv: Add built-in `pip-rehash` feature. You don't need to install [pyenv-pip-rehash](https://github.com/yyuu/pyenv-pip-rehash) anymore.
 * python-build: Add new CPython release; 2.7.9 (#284)
 * python-build: Add new PyPy releases; pypy3-2.4.0, pypy3-2.4.0-src (#277)
 * python-build: Add build definitions of PyPy nightly build
diff --git a/README.md b/README.md
index 1c267354..9fb4f044 100644
--- a/README.md
+++ b/README.md
@@ -363,7 +363,7 @@ name | default | description
 `PYENV_DEBUG` | | Outputs debug information.<br>Also as: `pyenv --debug <subcommand>`
 `PYENV_HOOK_PATH` | [_see wiki_][hooks] | Colon-separated list of paths searched for pyenv hooks.
 `PYENV_DIR` | `$PWD` | Directory to start searching for `.python-version` files.
-`PYTHON_BUILD_ARIA2_OPTS` | | Used to pass aditional parameters to [`aria2`](https://aria2.github.io/).<br>if `aria2c` binary is available on PATH, pyenv use `aria2c` instead of `curl` or `wget` to download the Python Source code. If you have an unstable internet connection, you can use this variable to instruct `aria2` to accelerate the download.<br>In most cases, you will only need to use `-x 10 -k 1M` as value to `PYTHON_BUILD_ARIA2_OPTS` environment variable
+`PYTHON_BUILD_ARIA2_OPTS` | | Used to pass additional parameters to [`aria2`](https://aria2.github.io/).<br>if `aria2c` binary is available on PATH, pyenv use `aria2c` instead of `curl` or `wget` to download the Python Source code. If you have an unstable internet connection, you can use this variable to instruct `aria2` to accelerate the download.<br>In most cases, you will only need to use `-x 10 -k 1M` as value to `PYTHON_BUILD_ARIA2_OPTS` environment variable
 
 
 
diff --git a/plugins/python-build/README.md b/plugins/python-build/README.md
index c13c51c9..58957bdc 100644
--- a/plugins/python-build/README.md
+++ b/plugins/python-build/README.md
@@ -13,7 +13,7 @@ for changes in each version.
 
 ## Installation
 
-### Installing as an pyenv plugin (recommended)
+### Installing as a pyenv plugin (recommended)
 
 You need nothing to do since python-build is bundled with pyenv by
 default.
@@ -124,7 +124,7 @@ You can set certain environment variables to control the build process.
 * `MAKE_OPTS` (or `MAKEOPTS`) lets you pass additional options to `make`.
 * `MAKE_INSTALL_OPTS` lets you pass additional options to `make install`.
 * `PYTHON_CONFIGURE_OPTS` and `PYTHON_MAKE_OPTS` and `PYTHON_MAKE_INSTALL_OPTS` allow
-  you to specify configure and make options for buildling CPython. These variables
+  you to specify configure and make options for building CPython. These variables
   will be passed to Python only, not any dependent packages (e.g. libyaml).
 
 ### Applying patches to Python before compiling