I have read The quick and easy way to effective speaking by Dale Carnegie. The book is outdated in examples, copyright is in 1962. Still, there are useful tips about public speaking in the book. Here are some of my notes based on the book.
Every talk has one of four major goals. Pick the one that suits you, the audience and the occasion.
1. To persuade or get action.
2. To inform.
3. To impress and convince.
4. To entertain.
Notes about preparation and delivery.
• Only the prepared speaker deserves to be confident.
• Be sure you are excited about your subject.
• Be eager to share your talk with your listeners.
• The listeners shall feel that what you say is important to them.
• Talk in terms of your listeners’ interests.
Ask yourself how knowledge of your subject will help your audience solve their problems and achieve their goals. In other words, “What’s in it for them?” Then proceed to show them that, and you will have their full attention.
If the purpose of your talk is to inform then make the talk easy to listen to and easy to remember.
If your aim is to convince, remember that it is more effective to stir emotions than to arouse thoughts. Feelings are more powerful than cold ideas.
The book mentions the classic recipe for a talk: First tell them what you are going to tell them; then tell them; then tell them what you told them.
If you ever get to introduce a speaker, follow the T-I-S formula:
+ T stands for topic (of the speech).
+ I stands for importance, connect topic and audience.
+ S stands for speaker, introduce him/her.
A great site about professional presentation design is Garr Reynold’s blog 
I got a link in my Twitter stream pointing to