Public lectures are events where speakers present information on various topics to an audience. These lectures can cover a wide range of subjects, including science, history, art, and technology. They are often held in universities, community centers, or cultural institutions, and are designed to educate and engage the public. Attendees of public lectures can ask questions and participate in discussions, making these events interactive. Many public lectures are free or low-cost, allowing people from different backgrounds to access knowledge and learn from experts in their fields, such as professors, authors, or industry leaders.