The image is a black and white photograph of an elderly man standing in front of a blackboard. He is wearing a suit and tie and has a long white beard and mustache. The man is holding a pointer in his right hand and appears to be writing on the blackboard with chalk. The blackboard is filled with mathematical equations and formulas written in white chalk. There is a shadow of the man on the right side of the image. The photograph appears to have been taken in a classroom or a classroom setting.