Before you read any further, can you think of any photographs that are not used as a means of expression or communication? Blog about them.
Been thinking about this for a few days now and can’t think of any. At first, I thought about passport or ID photos but they are used to communicate identification and even surveillance footage from which stills can be extracted, serve to observe and be referenced if we need to track someone or some instant / event that happened. Much of this type of image capture (surveillance, officialdom) is not a means of expression but it does have a communication aspect.