Cassandra Clare

Cassandra Clare was born on July 27, 1973, in Tehran, Iran, to American parents and grew up traveling between multiple countries before the family settled in Los Angeles. She attended Bard College in New York and worked for many years as a journalist and entertainment reporter before her career as a novelist consumed her professional life entirely. Clare began writing fan fiction as a teenager and early adult, developing both her craft and her sense of audience through that community before transitioning to original fiction. Her deep familiarity with genre conventions — and her willingness to manipulate and subvert them — became one of the defining characteristics of her work.

Clare’s debut novel, City of Bones (2007), the first book in The Mortal Instruments series, introduced the Shadowhunter universe — an elaborately constructed fantasy world in which human-angel hybrids called Shadowhunters protect the world from demons, operating alongside a community of “Downworlders” that includes vampires, werewolves, faeries, and warlocks. The series, set primarily in a hidden New York City alongside the visible one, became a global phenomenon, selling tens of millions of copies and spawning a film adaptation and two television series. The combination of urban fantasy setting, romantic entanglements, and an ensemble of memorably distinctive characters proved irresistible to an enormous global readership.

Clare has expanded her Shadowhunter universe across multiple interconnected series, including The Infernal Devices (set in Victorian London), The Dark Artifices, The Last Hours, and The Eldest Curses, each following different characters in different time periods while sharing the same intricate mythology and world-building. This world-building is one of Clare’s most remarkable achievements — she has created one of the most fully developed fictional universes in contemporary YA fantasy, with its own history, political structures, religious traditions, and laws that remain consistent across dozens of novels spanning multiple decades and continents.

Clare’s writing is celebrated for its propulsive plotting, its sharp dialogue, and the enormous affection she clearly has for her characters — particularly the LGBTQ+ characters whose stories have become increasingly central to her work. She has been an early and consistent advocate for queer representation in YA fantasy, and characters like Magnus Bane and Alec Lightwood have become iconic figures in the genre. Cassandra Clare lives in Massachusetts and continues to expand the Shadowhunter Chronicles, her devoted global fanbase one of the most passionate and creative in contemporary publishing.