 mix 
brush and knife work in a painting, it pays to be aware of this, so you do not 
have some passages that stand out as being different from the rest if that is 
not your intention. But that might be exactly the effect you want.</p>
<h2><a name="marks"></a>Making Marks</h2>
<p>This leads directly into the matter of how we apply paint to the canvas. Oil 
painters tend to use one of a handful of basic approaches to painting, and the 
approach you choose has a lot to do with the techniques you will u