Oscar winner Guillermo del Toro is one of the most prolific artists working in film. His directorial work includes Cronos (1993), Mimic (1997), The Devil's Backbone (2001), Blade II (2002), Hellboy (2004), Pan's Labyrinth (2006), Hellboy II (2008) and Pacific Rim (2013). He has also worked extensively as a producer, with several screenwriting credits to his name. As a novelist he coauthored The Strain Trilogy (2009-2011), which he also developed into a television series for FX in 2014. Del Toro has spoken of the "primal, spiritual function" of his art, which gives expression to his fascination with monsters, myth, archetype, metaphor, Jungian psychology, the paranormal and religion.

This collection of new essays discusses cultural, religious and literary influences on del Toro's work and explores key themes of his films, including the child's experience of humanity through encounters with the monstrous.