caption: The image shows a man standing in front of a large group of people in a lecture hall. The people are sitting on chairs and some are standing on the floor. On the left side of the image, there is a table with papers, glasses, and other objects placed on it. In the background, there are people standing, a camera with a stand, a board with text on it, a wall, and a roof with ceiling lights. The image is in black and white.