A webinar is an online seminar that allows people to participate in discussions, presentations, or training sessions from anywhere in the world. It typically involves a speaker or a panel sharing information through video and audio, while attendees can ask questions and interact in real-time. This format is popular for educational purposes, business meetings, and marketing events, making it easy for organizations to reach a larger audience. Participants can join a webinar using their computers or mobile devices, often through platforms like Zoom or Webex. Webinars can be live or recorded, allowing attendees to access the content later. This flexibility makes webinars a valuable tool for learning and engagement.