diff --git a/Section 1- Python Crash Course/2-Python List,Dictionary,Sets etc.ipynb b/Section 1- Python Crash Course/2-Python List,Dictionary,Sets etc.ipynb
index 4c4e2ae..7d03d70 100644
--- a/Section 1- Python Crash Course/2-Python List,Dictionary,Sets etc.ipynb	
+++ b/Section 1- Python Crash Course/2-Python List,Dictionary,Sets etc.ipynb	
@@ -164,7 +164,7 @@
     }
    ],
    "source": [
-    "print(my_str.isalnum()) #check if all char are numbers\n",
+    "print(my_str.isalnum()) #check if all char are numbers or alphabets\n",
     "print(my_str.isalpha()) #check if all char in the string are alphabetic\n",
     "print(my_str.isdigit()) #test if string contains digits\n",
     "print(my_str.istitle()) #test if string contains title words\n",