The first impression is always lasting so to speak. It goes the same with your first date, your job interview and even on Facebook marketing.
In many social media site when you sign up, you will get the option to load an image that will represent yourself. Reason? It will help to identify you. It’s a must. Same thing goes with your profile picture in Facebook as it is considered to be way important compared to the top page of your timeline which is your cover photo.
In a research, Oxford’s Dr. Bernie Hogan says, ” This photo has become the new calling card, it is the first point of contact and believed that its more professional having an avatar/profile picture because it adds a different level of personal touch.”
Read more here: http://www.drivetrafficmedia.com/facebook-personal-profile-page/