Adam Gidwitz (born February 14, 1982) is the author of the best selling children's books A Tale Dark and Grimm (2010), In a Glass Grimmly (2012), and The Grimm Conclusion (2013), all published by Dutton Books for Young Readers, an imprint of Penguin Random House. He received a 2017 Newbery Honor for The Inquisitor’s Tale: Or, The Three Magical Children and Their Holy Dog (2016). In 2021, his book A Tale Dark and Grimm was adapted into an animated miniseries on Netflix.