Most of what you need to know about wood burning (official term: "Pyrography"), you will learn as you do it.  I will give you a demonstration and then let you play around with the burner and various tips. 

Here's a website to scroll through for an overview of the process:
http://www.wikihow.com/Woodburn

Examples of wood burning art and links to the website on which they are found:
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http://woodworkingpage.com/wood-burning-as-an-art/
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​http://www.blazerscats.com/woodburning_art/wood_burning_art.htm
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​https://www.olx.co.ke/ad/wood-burning-art-ID15Hj9s.html
Blog Post:
1.  While wood burning is very different from other forms of artwork, in what ways is it similar? 
2.  What medium(s) has similar issues to which you need to pay attention?