In the video, a man is seen standing in front of a black background. He is wearing a gray shirt and has long blonde hair. The man is holding a red marker and is using it to draw on the black background. He starts by drawing a pink circle, then adds a blue circle next to it. He then proceeds to draw a yellow line connecting the two circles, creating a simple diagram. The man continues to draw more circles and lines, creating a series of interconnected diagrams. Throughout the video, the man speaks to the camera, explaining the process of drawing the diagrams. The video is shot in a well-lit room, and the man's movements are smooth and deliberate.