diff --git a/README.md b/README.md
index cab84d9..a726d27 100644
--- a/README.md
+++ b/README.md
@@ -70,6 +70,7 @@ http://flypython.com
 1. [Class](#class)
 1. [Web Scraping](#web-scraping)
 1. [Automation](#automation)
+1. [Authentication](#authentication)
 1. [Bot](#bot)
 1. [Spreasheet](#spreasheet)
 1. [Finance](#finance)
@@ -134,6 +135,11 @@ B) Algorithmic Trading: [Python for Financial Analysis and Algorithmic Trading:
 
 <br>
 
+### Authentication
+* [Implementing User Authentication in a Python Application](https://www.loginradius.com/blog/async/guest-post/user-authentication-in-python/?utm_source=mybridge&utm_medium=email&utm_campaign=read_more)
+
+<br>
+
 ### Bot
 * [Making a Reddit + Facebook Messenger Bot](https://pythontips.com/2017/04/13/making-a-reddit-facebook-messenger-bot?utm_source=mybridge&utm_medium=email&utm_campaign=read_more)
 * [My open source Instagram bot (written in Python) got me 2,500 real followers for $5 in server costs](https://medium.freecodecamp.com/my-open-source-instagram-bot-got-me-2-500-real-followers-for-5-in-server-costs-e40491358340?utm_source=mybridge&utm_medium=email&utm_campaign=read_more)