John Connolly was born in Dublin, Ireland in 1968 and has, at various points in his life, worked as a journalist, a barman, a local government official, a waiter and a dogsbody at Harrods department store in London.He studied English in Trinity College, Dublin and journalism at Dublin City University, subsequently spending five years working as a freelance journalist for The Irish Times newspaper, to which he continues to contribute.
He is best known for his Charlie Parker series which follows the former New York City police detective. Add to this a couple of stand alone thrillers plus two volumes of short stories. He has also written a series of books for young adults which go by the name of the Samuel Johnson trilogy.
He has also written a series of young adult fantasy books, teaming up with his partner, Jennifer Ridyard for the three volumes.