By far the best book I've read on this stuff is Presentation Zen:

http://www.amazon.com/Presentation-Zen-Simple-Delivery-Editi...

PowerPoint is a presentation tool, and like any tool it can be misused to the point of frustration. At best, PowerPoint offers a good way to provide a visual aid for a presentation. People who present crappy PowerPoint decks would have no trouble delivering a similarly crappy speech, or writing an indecipherable memo.

One great book on delivering awesome presentations - Presentation Zen (http://www.amazon.com/Presentation-Zen-Simple-Delivery-Editi...)

Garr Reynolds has an excellent blog about giving great, bullet point free Presentations: http://www.presentationzen.com/

His book, Presentation Zen, comes highly recommended (not a referral link): http://www.amazon.com/Presentation-Zen-Simple-Delivery-Editi...