Erin Morgenstern is a writer and multimedia artist who describes all her work as "fairy tales in one way or another." She is the author of two fantasy novels, The Night Circus (2011) and The Starless Sea (2019). The Night Circus was a number-one national bestseller, published in more than a dozen languages by 2013, and won the annual Locus Award for Best First Novel. Morgenstern is also a 2012 recipient of an Alex Award.

She has a degree in Theatre from Smith College and lives in Massachusetts. She has an ever-growing collection of jewelry made from skeleton keys and often has a cat on her lap.