diff --git a/README.md b/README.md
index 12399be..8a4353c 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,8 @@
 # ISDN-Python
 
+[![PyPI version](https://badge.fury.io/py/isdn.svg)](https://badge.fury.io/py/isdn)
+[![Test](https://github.com/Babibubebon/isdn-python/actions/workflows/test.yml/badge.svg)](https://github.com/Babibubebon/isdn-python/actions/workflows/test.yml)
+
 [ISDN (International Standard Dojin Numbering)](https://isdn.jp/) のPythonライブラリとCLIツール
 
 ## Install
@@ -10,6 +13,8 @@ $ pip install isdn
 
 ## Example
 
+ISDNを[番号の仕様](https://isdn.jp/about.html)に従って検証
+
 ```python
 >>> from isdn import ISDN
 >>> isdn = ISDN("2784702901978")
@@ -19,6 +24,8 @@ True
 '8'
 ```
 
+isdn.jp が提供している書誌情報を取得 ([Web からの情報取得](https://isdn.jp/about.html))
+
 ```python
 >>> from isdn import ISDNClient
 >>> client = ISDNClient()