diff --git a/doc/Figures/tuto_kern_overview_basicdef.png b/doc/Figures/tuto_kern_overview_basicdef.png
index bad43b09..7a963228 100644
Binary files a/doc/Figures/tuto_kern_overview_basicdef.png and b/doc/Figures/tuto_kern_overview_basicdef.png differ
diff --git a/doc/GPy.inference.rst b/doc/GPy.inference.rst
index 357e70c7..f30e7d25 100644
--- a/doc/GPy.inference.rst
+++ b/doc/GPy.inference.rst
@@ -1,6 +1,14 @@
 inference Package
 =================
 
+:mod:`SGD` Module
+-----------------
+
+.. automodule:: GPy.inference.SGD
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
 :mod:`optimization` Module
 --------------------------
 
diff --git a/doc/GPy.kern.rst b/doc/GPy.kern.rst
index d6593939..a3a611b7 100644
--- a/doc/GPy.kern.rst
+++ b/doc/GPy.kern.rst
@@ -113,6 +113,14 @@ kern Package
     :undoc-members:
     :show-inheritance:
 
+:mod:`product` Module
+---------------------
+
+.. automodule:: GPy.kern.product
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
 :mod:`product_orthogonal` Module
 --------------------------------
 
diff --git a/doc/tuto_kernel_overview.rst b/doc/tuto_kernel_overview.rst
index 80e2bee2..7d76bfdd 100644
--- a/doc/tuto_kernel_overview.rst
+++ b/doc/tuto_kernel_overview.rst
@@ -13,17 +13,25 @@ First we import the libraries we will need ::
 For most kernels, the dimension is the only mandatory parameter to define a kernel object. However, it is also possible to specify the values of the parameters. For example, the three following commands are valid for defining a squared exponential kernel (ie rbf or Gaussian) ::
 
     ker1 = GPy.kern.rbf(1)  # Equivalent to ker1 = GPy.kern.rbf(D=1, variance=1., lengthscale=1.)
-    ker2 = GPy.kern.rbf(D=1, variance = 1.5, lengthscale=2.)
+    ker2 = GPy.kern.rbf(D=1, variance = .75, lengthscale=2.)
     ker3 = GPy.kern.rbf(1, .5, .5)
 
-A `plot` and a `print` functions are implemented to represent kernel objects ::
+A ``print`` and a ``plot`` functions are implemented to represent kernel objects. The commands ::
     
-    print ker1
+    print ker2
 
     ker1.plot()
     ker2.plot()
     ker3.plot()
 
+should return::
+
+           Name        |  Value   |  Constraints  |  Ties  
+    -------------------------------------------------------
+       rbf_variance    |  1.0000  |               |        
+      rbf_lengthscale  |  1.0000  |               |        
+
+
 .. figure::  Figures/tuto_kern_overview_basicdef.png
     :align:   center
     :height: 350px