The autopen is probably autograph collectors' worst enemy. When you recieve an autograph in the mail how do you know if it's an autopen? What is an autopen? Well an autopen isn't technically an authentic autograph. A machine acts as a robot and controls a pen programmed to move the way someone wishes. What makes the autopen even more dreadful to autograph collectors, is the fact that each letter can be changed in size. Don't let this fool you. There is only one way to tell if you have recieved an autopen. When you recieve an autograph go online and find the same autograph. If they are different in any way, then it is probably authentc. Be careful though, sometimes they will be identical without no differences at all. I wish you the best of luck with your run-ins with the dreaded autopen.