diff --git a/INSTALL b/INSTALL
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+
+
+For some operations Stéganô needs the Python Imaging Library (PIL):
+
+    $ wget http://effbot.org/downloads/Imaging-1.1.7.tar.gz
+    $ tar -xzvf Imaging-1.1.7.tar.gz
+    $ rm -f Imaging-1.1.7.tar.gz
+    $ cd Imaging-1.1.7/
+    $ sudo python setup.py install
+    $ cd ..
+    $ sudo rm -Rf Imaging-1.1.7/
+
+
+
+To install Stéganô:
+
+    $ python setup.py install
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