I am an unabashed fan of both the person Garr Reynolds (a humble and very solid guy) and his work, the book and blog Presentation Zen. I wrote a review of the book awhile ago, and have been happy to see it climb the bestselling ranks.
Garr just spoke to the folks at Google about many of the concepts covered in the book. It was fun to see him live, and to virtually experience the types of visuals that make a presentation engaging and interesting.
See for yourself. I watched this late one evening and got inspired to spruce up my own presentations. Thanks Google for sharing these talks through YouTube.