1) An estimated 25-33 million presentations are delivered every day, and many of them are more terrible than effective.
2) Presentation skills involve more than just the words - it is like a "costume" that includes voice, presence, visual aids, and other nonverbal cues that support the message and influence the audience.
3) Proper preparation, including mastering the topic, defining the purpose, analyzing the audience, outlining the structure, and rehearsing are crucial to effective presentations. Evaluation of past presentations also helps improve skills.