OWL 2 Slide Presentation

Hello all,
 
Could someone please point me to a slide presentation covering main aspects of the OWL 2 spec? I can perhaps extract some information from [1], [2] and [3], but I wonder if someone has already attempted in doing so.
 
Thanks,
- Jyoti
 
[1] http://www.w3.org/2007/OWL/wiki/Primer

[2] http://www.w3.org/TR/2008/WD-owl2-quick-reference-20081202/

[3]