Presentation

Types

1. Formal

It's normally described as more academic, more specific format, organised, concise, there is more structure. It's more of a professional, lecture type. 

Questions are normally kept at the end of the presentation, or after each point that is being presented. Often questions are asked from the person who is presenting to the audience.

It's recommended to wear more formal clothing whilst presenting a formal presentation.

Few examples:

1. Training session

2. Professional conference

3. News report

2. Informal

Informal can be similar to formal, but it's just sort of "more freedom" to it. It's less "serious". It can be more of an open conversation, more interactive. It doesn't have to be as organised and structural as a formal presentation. it can be more casual.

1. Comedy set.

2. Seminar.

3. Student presentation.

Styles

A few presentational styles can be:

1. Visual Style: using only pictures in your presentation slides. It's good if a visual is enough to tell you a story and whatever you are talking about.

For example Steve Jobs:

Steve Jobs Introducing The iPhone At MacWorld 2007 - YouTube

2. Freeform Style: it's a presentation without any slides. It's good for people who are good at storytelling.

For example Ken Robinson:

Bring on the learning revolution! | Ken Robinson - YouTube

3. Instructor Style: this is a characteristic style for teachers and professionals. Engaged with slides, pictures, etc. Can be provided with lots of content, and the slides can be a resource themselves. Needs to be in a logical order.

Al Gore: The Case for Optimism on Climate Change (TED 2016) - YouTube

4. Takahashi: this style was invented by Masayoshi Takhashi, it features large bold text, kept in minimal style. For example:

More can be found on The 8 Types of Presentation Styles: Which Category Do You Fall Into? (hubspot.com)

Skills

There are various skills that could be handy in a presentation. First thing, if you are using a certain program/slideshow of some sort, it is knowing how the program works and that it runs smoothly, test it out before the presentation.

Knowing your audience could be helpful in your presentation. 

Research well about the topic you will be talking about. It's quite handy to be passionate about what you are speaking about.

A certain pace of speaking, which could be relaxed/calm/confident (make your audience feel relaxed too could be handy!). Body language is quite important too.