diff --git a/free-programming-books-ar.md b/free-programming-books-ar.md
index 906a0b7b6cc282ea2a79789216c0fd8f441f22ec..56dba7708d7c7245510cc812646fa5055f86b64a 100644
--- a/free-programming-books-ar.md
+++ b/free-programming-books-ar.md
@@ -1,6 +1,7 @@
 ### Index
 
 * [Arduino](#arduino)
+* [C#](#c-sharp)
 * [HTML/CSS](#htmlcss)
 * [Introduction to Programming in Arabic](#introduction-to-programming-in-arabic)
 * [JavaScript](#javascript)
@@ -24,6 +25,11 @@
 * [كتاب احترف الأردوينو](http://www.ev-center.com/uploads/2/1/2/6/21261678/arduino.pdf) (PDF)
 
 
+### C Sharp
+
+* [سبيلك المختصر لتعلم لغة c# - برمجة الواجهات](https://www.mobarmijoun.com/2014/04/c_19.html) - Khaled Al-Saadani (Arab Coders Academy)
+
+
 ### HTML/CSS
 
 * [التحريك عبر CSS](https://academy.hsoub.com/files/14-التحريك-عبر-css/)