A keynote speaker is a person who delivers a main speech at an event, such as a conference or seminar. Their role is to set the tone and theme for the gathering, often sharing insights, experiences, or expertise related to the event's focus. This speech is usually inspiring and thought-provoking, aiming to engage the audience and encourage discussion. Keynote speakers are often chosen for their knowledge in a specific field, such as technology, business, or healthcare. They can be influential figures, like industry leaders or motivational speakers, who have the ability to captivate and motivate the audience, making the event memorable.