John Ajvide Lindqvist's debut novel, Let the Right One In, was an instant bestseller in Sweden and was named Best Novel in Translation 2005 in Norway. The Swedish film adaptation, directed by Tomas Alfredsson, has won top honors at film festivals all over the globe, including Best Narrative Feature at the Tribeca Film Festival. An American remake, Let Me In, written and directed by Cloverfield director Matt Reeves, was released in October 2010 to rave reviews. 

Lindqvist grew up in Blackeberg, a suburb of Stockholm and the setting for Let the Right One In. Wanting to become something awful and fantastic, he first became a conjurer, and then was a stand-up comedian for twelve years. He has also written for Swedish television. He lives in Sweden.