American writer of children's fantasy novels, she is best known for penning the popular Spiderwick Chronicles book series. She is also the author of Doll Bones, a 2013 novel that was awarded the prestigious Newbery Medal.
She earned a degree in English from The College of New Jersey in 1994. Before publishing her debut book, Tithe: A Modern Faerie Tale, in 2002, she worked as an editor of medical journals.
Her lesser-known published works include The Curse Workers series and The Good Neighbors graphic novel trilogy.
She grew up in West Long Branch, New Jersey. She married her high school sweetheart, Theo Black, in 1999.
Her popular work, The Spiderwick Chronicles, was adapted into a 2008 film starring Freddie Highmore .