diff --git a/xpdView/waterfall_2d.py b/xpdView/waterfall_2d.py
index 5642500..56c0854 100644
--- a/xpdView/waterfall_2d.py
+++ b/xpdView/waterfall_2d.py
@@ -36,6 +36,7 @@ def __init__(self, key_list, data_dict, fig, canvas):
         self.data_dict = data_dict
         self.key_list = key_list
         self.fig = fig
+        self.normalized = False
         self.canvas = canvas
         self.ax = self.fig.add_subplot(111)
         self.x_offset = 0
@@ -50,16 +51,25 @@ def generate_waterfall(self):
         None
         """
         self.ax.cla()
-        # self.ax.hold(True)
-        for i in range(0, len(self.key_list)):
-            temp_x = self.normalized_data[self.key_list[i]][0].copy()
-            temp_y = self.normalized_data[self.key_list[i]][1].copy()
-            temp_x += self.x_offset * i
-            temp_y += self.y_offset * i
-            self.ax.plot(temp_x, temp_y)
+        title = 'Data not normalized'
+        if self.normalized:
+            data = self.normalized_data
+            title = 'Data Normalized'
+        else:
+            data = self.data_dict
+        list_data = (data[k] for k in self.key_list)  # you can do a list comp here too
+        for i, (x, y) in enumerate(list_data):
+            self.ax.plot(x + self.x_offset * i, y + self.y_offset * i)
+        self.ax.set_title(title)
         self.ax.autoscale()
         self.canvas.draw()
 
+    def is_normalized(self):
+        return self.normalized
+
+    def set_normalized(self, state):
+        self.normalized = state
+
     def normalize_data(self):
         """This method normalizes data for plotting
 
@@ -72,4 +82,4 @@ def normalize_data(self):
             temp = self.data_dict[key].copy()
             temp[1] = temp[1] - temp[1].min()
             temp[1] = temp[1] / (temp[1].max() - temp[1].min())
-            self.normalized_data[key] = temp
\ No newline at end of file
+            self.normalized_data[key] = temp
diff --git a/xpdView/xpd_view.py b/xpdView/xpd_view.py
index e851925..edc5714 100644
--- a/xpdView/xpd_view.py
+++ b/xpdView/xpd_view.py
@@ -519,21 +519,29 @@ def twod_plot_settings(self):
         x_offset_slider.setMinimum(0)
         x_offset_slider.setMaximum(20)
         x_offset_slider.valueChanged.connect(self.set_x_offset)
-
+        normalize_option_label = QtGui.QLabel()
+        normalize_option_label.setText("Normalize data:")
+        normalize_option_box = QtGui.QCheckBox()
+        # data is normalized by default
+        normalize_option_box.setChecked(self.water.is_normalized())
+        normalize_option_box.stateChanged.connect(self.set_normalization)
         layout = QtGui.QHBoxLayout()
-        layout.addStretch()
-        layout.addWidget(y_offset_label)
-        layout.addStretch()
-        layout.addWidget(y_offset_slider)
-        layout.addStretch()
-        layout.addWidget(x_offset_label)
-        layout.addStretch()
-        layout.addWidget(x_offset_slider)
+        for widget in [y_offset_label, y_offset_slider, x_offset_label, x_offset_slider, normalize_option_label, normalize_option_box]:
+            layout.addStretch()
+            layout.addWidget(widget)
 
         settings_window.setLayout(layout)
         settings_window.show()
         settings_window.exec_()
 
+    def set_normalization(self, state):
+        if state == 2:
+            self.water.set_normalized(True)
+        else:
+            self.water.set_normalized(False)
+
+        self.water.generate_waterfall()
+
     def set_x_offset(self, value):
         self.water.x_offset = value
         self.water.generate_waterfall()