In a ever-more digital world, emojis can represent one of the only ways to express emotion on the internet. Can we sense the mood of the day on Twitter or among your Facebook friends just by looking at emojis? “Twitter’s diary” is a daily synthesis of the most used emojis accross the social net- work, therefor capturing the “mood of the day”. A single emoji to resume all the world’s angry Twittos’ threads. Yes!