diff --git a/fake_traffic.py b/fake_traffic.py
index ab79d6d..c089b3b 100644
--- a/fake_traffic.py
+++ b/fake_traffic.py
@@ -116,6 +116,16 @@ def _thread(trend):
         recursive_browse(url, depth=randint(max(0, 9-i), max(5, 11-i)))    
     
 def fake_traffic(country='US', language='en-US', threads=THREADS, min_wait=MIN_WAIT, max_wait=MAX_WAIT, debug=DEBUG):
+""" Imitating an Internet user by mimicking popular web traffic (internet traffic generator).
+
+    country = country code ISO 3166-1 Alpha-2 code (https://www.iso.org/obp/ui/),
+    language = country-language code ISO-639 and ISO-3166 (https://www.fincher.org/Utilities/CountryLanguageList.shtml),
+    threads = number of threads (defaults to 1),
+    min_wait = minimal delay between requests (defaults to 1),
+    max_wait = maximum delay between requests (defaults to 30),
+    debug = if True, then print the details of the requests (defaults to False).
+    """
+  
     global THREADS, MIN_WAIT, MAX_WAIT, DEBUG
     THREADS = threads
     MIN_WAIT = min_wait