Presentation is a skill of charisma?
In a short answer, No.
Sometimes, too strong individual talent would worsen the delivery of messages and just deliver a positive impression of speakers.
Do You Need Charisma to Be a Great Public Speaker?
This HBS article described "Be present" is much more important than "be charisma".
Effective communication can be explainable
You can easily remember a great presenter with vague messages. You can't actually remember what messages were. On the other way around sometimes happens. You remember the message from the presentation, but you can't remember who made the presentation.
If it is a negotiation or business relationship, the speaker should appeal to himself or herself more, but as a presentation, it would be a full score.
Nancy Duarte explains how to structure communication in very narrative way. Her presenation itself was well structured and typical example was Steve Jobs' legendary presentation.
Efforts really matter if there is "not-to-do".
Also, British presenter guru introduced some "avoidable" failure of message delivery. You should not talk about the following things even outside presentation.
- Gossip
- Judgement
- Negativity
- Complaint
- Excuses
- Exeggaration
