Twitter: https://help.twitter.com/en/using-twitter/picture-descriptions https://help.twitter.com/en/using-twitter/picture-descriptio... Facebook: https://www.f

Twitter: https://help.twitter.com/en/using-twitter/picture-descriptions https://help.twitter.com/en/using-twitter/picture-descriptio... Facebook: https://www.facebook.com/help/214124458607871 https://www.facebook.com/help/214124458607871 Instagram: https://help.instagram.com/503708446705527 https://help.instagram.com/503708446705527 It's becoming a lot more common!