"The Designer's Guide to Startup Weekend," PowerPoint presentation design by Iryna Nezhynska, via Behance. I love the simple colors and flat shapes, with the plays on typography and infographic design.
The Paper - Powerpoint Presentation Template - Business Powerpoint Templates
PPT Template Designed by Simon. Download：http://www.pptstore.net/shangwu_ppt/5811.html
Experimentation for new PowerPoint presentation by David Maxwell, via Behance
Mevo Powerpoint Presentation Template (Powerpoint Templates) Presentation