Here is the slideshow for this training:

Start by looking at these:

Then leave a comment below.

Here are some further links:

• The Cognitive Load of PowerPoint: Q&A With Richard E. Mayer : MarketingProfs Articles
  This requires a sign up, but has some really good analysis but in lay terms about slide presentations like PowerPoint.
• Design by Fire • Convenient Lessons from An Inconvenient Truth
• How to Change the World: The 10/20/30 Rule of PowerPoint
• Presentation Zen