People communicate everyday, for various reasons. Pointed communication is communicating with a goal. Chatting to learn more about a topic or to discover information is goal oriented. Images elicit responses and have a goal. I'm not an expert by any stretch of the imagination, but I come across a lot of instances of pointed communication I respond to, and some that I wonder what the goal was at all. Most of that happens in marketing and PR, and that's what I like to write about.