I'm looking for self help books, particularly ones that focus on improving communication skills, are there any you would recommended?

I am a fairly shy person and have been trying to become more outgoing. I was told by a friend to try reading a self help book, the one he suggested was How to Win Friends and Influence People by Dale Carnegie. It looks like a promising book, but I was wondering if the people of Reddit also knew of some that I might like/might help. Anything that teaches techniques to improve self confidence/self image or helps one become a more outgoing individual would be greatly appreciated.