diff --git a/.gitmessage.txt b/.gitmessage.txt
new file mode 100644
index 0000000..4c7595f
--- /dev/null
+++ b/.gitmessage.txt
@@ -0,0 +1,18 @@
+# Please write in this format
+# <Type> : <Title>
+
+################
+# Write body
+
+################
+# Write footer or issue number
+
+################
+# feature : New feature
+# fix : Fix bug
+# docs : Fix docs
+# test : Mofiy test code
+# refactor : Refactoring code
+# style : Changes that don't affect code semantics
+# chore : Build parts or package manager modifications
+################
\ No newline at end of file
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..01557b2
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,30 @@
+# Contributing to React-Epub_Viewer
+
+🎈 First off, thanks for taking the time to contribute! 🎈
+
+The following is a set of guidelines for contributing to `React-Epub_Viewer`, which are hosted by NB. These are mostly guidelines, not rules. Use your best judgment, and feel free to propose changes to this document in a pull request.
+
+First open an issue and let us know what you're contributing to!
+
+---
+
+**Table Of Contents**
+
+[Code Commit](#Code-Commit)
+
+
+
+---
+
+# Code Commit
+
+1. Please create a branch in this format, **`<Issue Number>-<Some name>`**
+2. Open a terminal and navigate to your project path. And enter this.
+**`git config --global commit.template .gitmessage.txt`**
+3. You can use the template, with `git commit` through vi. **Not** `git commit -m`
+4. Enjoy contributing!
+
+
+---
+
+If you have any other opinions, please feel free to suggest! 😀
diff --git a/README.md b/README.md
index 22b5878..da1b742 100644
--- a/README.md
+++ b/README.md
@@ -135,3 +135,7 @@ You can see also Types for React-Epub-Viewer [here](https://github.com/altmshfkg
 
 
 
+# Contribuing
+
+If you would like to contribute, please follow the [guideline](https://github.com/altmshfkgudtjr/react-epub-viewer/blob/main/CONTRIBUTING.md)! Thank you! 😀
+