[ajhit406]

Wow, I'm surprised that 10hrs after posting nobody has mentioned this book:

"The Art of Public Speaking" by Dale Carnegie is considered the Bible of public speaking.

http://www.manybooks.net/titles/carnegieda16311631716317-8.h...

It's a timeless manual that describes in detail how to humanize both the content and delivery of your speech and how to connect with 1000 people the same we are able to connect with one.

It's applicable to any type of communication, so even if you don't plan on public speaking, I highly recommend reading it.