There are four types of keynote speakers.
1) Motivational – the ability to motivate or inspire the audience to think differently or take action on a topic or problem.
2) Generalist – they will craft a speech exclusively for your topic or theme.
3) Internal – a high ranking executive, or technical speaker with inside knowledge of the organization or industry.
4) Celebrity – A big “name” speaker that will draw a lot of attention or interest to your event.