Slender Man is a creepy character in the vein of the Headless Horseman of Sleepy Hollow. He is commonly depicted as being very tall, thin, dressed in a dark suit, and having a featureless face and freakishly long arms. He is said to lure children and other victims into wooded areas to kill them. But first he stalks his victims, slowly driving them mad.But this is a monster for the Digital Age. While some talk seriously about "believing in" Slender Man, are genuinely frightened of or have nightmares about him, there is a fascinating origin story behind the character.Internet films, video games, apps, and even some self-published fiction works are springing up around Slender Man. You can buy Slender costumes for Halloween, but you can not yet see a Slender Man movie in theaters. And there is a reason why.This book is part of a continuing series. "Everything You Need to Know ... in 15 Minutes of Less" is here because you are busy. Government leaders and business executives around the world make best use of their time by having staff members gather information they need to know, distill it down to the essentials, and brief them on it. We are like your personal research team. We study a topic of interest to you and pluck out the most relevant, interesting, and useful pieces. What is left is a simple report that you can read in – you guessed it –15 minutes or less.You’re busy. Leave the research to us.