Joseph Delaney used to be an English teacher, before becoming the best-selling author of the Spook's series, which has been published in 30 countries and sold over 4.5 million copies worldwide. The first book, The Spook's Apprentice, was adapted into a major motion picture starring Jeff Bridges and Julianne Moore.

Joseph Delaney used to be an English teacher, before becoming the best-selling author of the Spook's series, which has been published in 30 countries and sold over 4.5 million copies worldwide. The first book, The Spook's Apprentice, was adapted into a major motion picture starring Jeff Bridges and Julianne Moore.