Anne Cassidy was born in London in 1952. She was an awkward teenager who spent the Swinging Sixties stuck in a convent school trying, dismally, to learn Latin. She was always falling in love and having her heart broken. She worked in a bank for five years until she finally grew up. She then went to college before becoming a teacher for many years.
In 2000 Anne became a full time writer, specialising in crime stories and thrillers for teenagers. In 2004 LOOKING FOR JJ was published to great acclaim, going on to be shortlisted for the 2004 Whitbread Prize and the 2005 Carnegie Medal.