"Social media ... has seen a rapid uptake of pictures containing human faces. One notable example is the selfie or digital self-portrait, which have become a phenomenal ubiquitous convention of online culture."
- (Souza et al 2015)
Souza, F. et al. 2015. "Dawn of the Selfie Era: The Whos, Wheres, and Hows of Selfies on Instagram". Semanticscholar.org [online]. Available at: https://www.semanticscholar.org/paper/Dawn-of-the-Selfie-Era-The-Whos-Wheres-and-Hows-of-Souza-Casas/063ade4e5a830da0bcb66c073ba9a388894f0deb [accessed 10 May 2020].