Although the duck face is a fairly new trend, artists have been creating "selfies" since paint was invented. Back then they were called self-portraits. Some people see the selfie trend as a reflection of society's growing selfishness or as a way to judge one's own popularity. They also record life events, as well as, document the way we live and who we are.
"Selfies are about identity, too. In the digital and very visual world that we all live in, selfies are sometimes the best way to show who we are, what we’re doing and how we’re feelings. We often use selfies as a way to communicate, to connect across all platforms with our friends and family and even strangers. We use selfies to capture moments in our lives. Graduates take celebratory selfies with their cap and gowns. We use selfies to locate ourselves." (http://infestation.co.za/art-selfie/)