diff --git a/monitor.py b/monitor.py
index 29dd6b3..a71b9d2 100644
--- a/monitor.py
+++ b/monitor.py
@@ -1,15 +1,15 @@
-__all__ = ['Monitor', 'get_monitor_files', 'load_results']
+__all__ = ['Monitor', 'get_monitor_files', 'load_results']    #creating a list
 
-import gym
+import gym    # importing gym
 from gym.core import Wrapper
-import time
+import time    # importing time to calculate time taken by programe
 from glob import glob
-import csv
+import csv     # importing csv
 import os.path as osp
-import json
+import json    # importing json
 import numpy as np
 
-class Monitor(Wrapper):
+class Monitor(Wrapper):    # declaring a class
     EXT = "monitor.csv"
     f = None
 
@@ -160,4 +160,4 @@ def test_monitor():
     last_logline = pandas.read_csv(f, index_col=None)
     assert set(last_logline.keys()) == {'l', 't', 'r'}, "Incorrect keys in monitor logline"
     f.close()
-    os.remove(mon_file)
\ No newline at end of file
+    os.remove(mon_file)