Methods of delivering a speech

It can be as simple as "Here's Johnny". If the audience is not familiar with the speaker a few Words mentioning why his message might be important and the qualifications and credentials that entitle him or her to be a welcomed speaker. Academics love a long list of credentials. Authors hate any hint about a work that failed in the marketplace. Politicians are tough to introduce. A favorite introduction, both simple and formal is "Ladies and Gentlemen. The President of the United States". The best rule is accuracy brevity and clarity but keep a 3 by 5 card up your sleeve in case you are on and the guest speaker is still in the green room.